亚洲综合在线播放_久久视频免费在线_久久久黄色av_亚洲免费视频一区

家家通 | 所有行業 | 所有企業 加入家家通，生意很輕松! ·免費注冊 ·登陸家家通 ·設為首頁
當前位置: 首頁 >> 全部產品 >> 機械 >> 漁業機械及設備 >> ASE 光源
ASE 光源
ASE 光源 價格：  元(人民幣) 產地：本地
最少起訂量：1 發貨地：本地至全國
上架時間：2019-12-19 11:30:16 瀏覽量：75
筱曉（上海）光子技術有限公司  
經營模式：其他 公司類型：貿易型,服務型
所屬行業：漁業機械及設備 主要客戶：全國
  在線咨詢 跟我QQ洽談

聯系方式

聯系人:王秀祥 () 手機:13918813416
電話: 傳真:
郵箱: 地址:中國上海金山區 楓涇鎮曹黎路38弄19號1117室

詳細介紹

<em id="sj5fw"><rp id="sj5fw"></rp></em>
    • 
                        
                            
    
                                
                                    
    ASE <\/span>光源<\/span> <\/p>
    Fiberlabs<\/strong><\/span> <\/p>
    一<\/span>.ASE光源<\/span> <\/p>
    ASE<\/strong>光源是一種白光光源，它在非常寬的光譜范圍內具有非常高的亮度<\/strong><\/span>。<\/strong>FiberLabs<\/strong>是**家生產結合C ，L波段ASE光源的廠家，然后不斷探索新的波長范圍ASE 光源如550nm的850nm和980nm等。FiberLabs提供世界上**穩定性的全波段ASE光源，產品波長覆蓋500nm到2000nm。<\/p>
    應用：光學元件測試，OCT，FBG傳感，光纖陀螺儀，氣體檢測等。<\/p>
    1.臺式ASE光源（典型產品 C波段）<\/p>
     <\/span> <\/p>
    特點<\/strong> <\/p>
    高輸出功率高達22dBm的<\/p>
    寬譜1530～1570nm<\/p>
    穩定的光譜輸出功率<\/p>
    平坦輸出<\/p>
    應用<\/strong> <\/p>
    光學元件特性測試<\/p>
    光學測量系統<\/p>
    光學傳感<\/p>

    <\/p>
    標準參數<\/strong> <\/p>
     
        型號<\/td>
        ASE-1550-25<\/p><\/td><\/tr>
        輸出波段<\/td>
        C波段<\/p><\/td><\/tr>
        輸出功率<\/td>
        ＞14dBm（＞25mw）<\/p><\/td><\/tr>
        光譜功率密度<\/td>
        >-10dBm/nm@1530-1560nm<\/p><\/td><\/tr>
        輸出功率穩定性*1<\/td>
        < +/- 0.005dB(typical <+/- 0.001dB)<\/p><\/td><\/tr>
        輸出光纖<\/td>SMF<\/td><\/tr>
        輸出接頭<\/td>FC/PC<\/td><\/tr>
        尺寸*2
        <\/td>
        66(H) x 160(W) x 230(D) mm<\/p><\/td><\/tr>
        操作溫度<\/td>
        0-40°C<\/p><\/td><\/tr>
        存儲溫度<\/td>
        -10-60℃<\/p><\/td><\/tr>
        重量<\/td>3Kg<\/td><\/tr>
        電源電壓<\/td>
        AC100-240V(50/60Hz)<\/p><\/td><\/tr><\/tbody><\/table>
        <\/strong><\/p>
        *1.開機一小時后，15分鐘內功率穩定性 <\/strong><\/p>
        *2.不包括凸起部分<\/strong><\/p>
        <\/strong> 

        <\/p>
        二<\/span><\/strong>.模塊式ASE光源（典型產品 C波段）<\/span> <\/p>
         <\/strong><\/p>
        特點<\/strong><\/p>
        ? 小尺寸: 12 x 70 x 90 mm ( MSA)<\/strong><\/p>
        ? C-band 高達22dbm<\/span>的輸出功率<\/span><\/strong><\/p>
        ? 結合電子控制<\/strong><\/p>
        ? 超高的溫度波長穩定性<\/strong><\/p>
        應用<\/strong><\/p>
        光學元件特性測試<\/strong><\/p>
        光學測量系統<\/strong><\/p>
        光學傳感<\/strong><\/p>

        <\/p>

        <\/p>
        標準參數<\/strong> <\/p>
        型號<\/span><\/span> <\/p><\/td>
        ASE-1550-25-MSA<\/span><\/span> <\/p><\/td><\/tr>
        輸出波段<\/span><\/span> <\/p><\/td>
        C波段<\/span><\/span> <\/p><\/td><\/tr>
        輸出功率<\/span><\/span> <\/p><\/td>
        ＞14dBm（＞25mw）<\/span><\/span> <\/p><\/td><\/tr>
        輸出接頭<\/span><\/span> <\/p><\/td>
        FC/PC<\/span><\/span> <\/p><\/td><\/tr>
        監測功能<\/span><\/span> <\/p><\/td>
        ASE output power<\/span><\/span> <\/p><\/td><\/tr>
        輸出功率穩定性*1<\/span><\/span> <\/p><\/td>
        < +/- 0.005dB(typical <+/- 0.001dB)<\/span><\/span> <\/p><\/td><\/tr>
        輸出光纖<\/span><\/span> <\/p><\/td>
        SMF<\/span><\/span> <\/p><\/td><\/tr>
        報警功能<\/span><\/span> <\/p><\/td>
        ASE output power degradation by 3dB *2<\/span><\/span> <\/p><\/td><\/tr>
        尺寸*3<\/span><\/span> <\/p><\/td>
        66(H) x 160(W) x 230(D) mm<\/span><\/span> <\/p><\/td><\/tr>
        操作溫度<\/span><\/span> <\/p><\/td>
        0-460℃<\/span><\/span> <\/p><\/td><\/tr>
        存儲溫度<\/span><\/span> <\/p><\/td>
        -20-70℃<\/span><\/span> <\/p><\/td><\/tr>
        控制功能<\/span><\/span> <\/p><\/td>
        LD shut down *<\/span>4<\/span><\/span> <\/p><\/td><\/tr>
        電源電壓<\/span><\/span> <\/p><\/td>
        DC 5V<\/span><\/span> <\/p><\/td><\/tr><\/tbody><\/table>
        *1: 開機啟動一小時后，15min內功率穩定性<\/p>
        *2: TTL \"L\" on ALARM<\/p>
        *3：不包含凸起部分<\/p>
        *4： Shutdown by TTL \"L\"<\/p>

        <\/p>

        <\/p>
        Denslight<\/strong><\/span> <\/p>

        <\/strong><\/span> <\/p>
        新加坡Denselight<\/span>生產的<\/span>DL-ASE<\/span>系列<\/span>ASE<\/span>光源模塊是一系列的低偏振度 寬帶光源光源，擁有多個波長選擇和多種功率輸出選擇。光源采用了非常好的溫度控制和補償措施，可以讓光源工作在惡劣的環境下，并得到穩定的波長和功率穩定 性。。所有的光源都是光纖輸出。具有連續輸出并且可以數字或者模擬調諧。產品符合<\/span>Rohs<\/span>要求，并且滿足<\/span>Telcorida GR-468-CORE<\/span>標準。<\/span> <\/p>
        重要特點： 
             多種波長選擇 <\/span>
             多種功率選擇 <\/span>
             操作溫度：<\/span>-20<\/span>～<\/span>70°C <\/span>
             連續輸出功率穩定性<\/span><0.01dB <\/span>
             模擬調制：<\/span>(3dB) ~20MHz <\/span>
             數字調制：<\/span>tr<1ns <\/span>
             內置光學隔離器 <\/span>
             超低噪聲 <\/span>
             有監控端口<\/span> <\/p>
        主要應用： 
            光通訊：適合<\/span>G<\/span>帶寬光纖到戶的連接（<\/span>FTTX<\/span>），測試，以及測量 <\/span>
            醫療：<\/span>OCT<\/span>，非侵入式診斷 <\/span>
            能源：氣體，化學品傳感器 <\/span>
            工業：在線制成監控，<\/span>3D<\/span>測量以及成像，半導體檢測等。 <\/span>
            環境：物理結構以及民用工程，智能結構，智能分布式傳感器 <\/span>
            國防安全：航海，導航，傳感器，紅外照明等。<\/span> <\/p>
        產品列表:<\/span> <\/p>
        <pre id="sj5fw"><button id="sj5fw"></button></pre>
        Product Code<\/span><\/span> <\/p><\/td>
        Wavelength Range<\/span><\/span> <\/p><\/td>
        功率(dBm)<\/span><\/span><\/span> <\/p><\/td>
        波段<\/span><\/span> <\/p><\/td>
        波譜密度(dBm/nm)<\/span><\/span><\/span> <\/p><\/td>
        備注<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-CW-CSO193A<\/a><\/span> <\/p><\/td>
        1285-1335nm<\/span><\/span> <\/p><\/td>
        19<\/span><\/span> <\/p><\/td>
        O band<\/span><\/span> <\/p><\/td>
        -6.5<\/span><\/span> <\/p><\/td>
        CW<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-CW-CSE145A<\/a><\/span> <\/p><\/td>
        1420-1460nm<\/span><\/span> <\/p><\/td>
        14<\/span><\/span> <\/p><\/td>
        E band<\/span><\/span> <\/p><\/td>
        -7.5<\/span><\/span> <\/p><\/td>
        CW<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-CW-CSC117A<\/span><\/span> <\/p><\/td>
        1525-1565nm<\/span><\/span> <\/p><\/td>
        11<\/span><\/span> <\/p><\/td>
        C band<\/span><\/span> <\/p><\/td>
        -10<\/span><\/span> <\/p><\/td>
        CW<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-CW-CSC183A<\/a><\/span> <\/p><\/td>
        1525-1562nm<\/span><\/span> <\/p><\/td>
        18<\/span><\/span> <\/p><\/td>
        C band<\/span><\/span> <\/p><\/td>
        -3.5<\/span><\/span> <\/p><\/td>
        CW<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-CW-CSCL117A<\/a><\/span> <\/p><\/td>
        1525-1610nm<\/span><\/span> <\/p><\/td>
        11<\/span><\/span> <\/p><\/td>
        C+L band<\/span><\/span> <\/p><\/td>
        -15<\/span><\/span> <\/p><\/td>
        CW<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-CW-CSL165A<\/a><\/span> <\/p><\/td>
        1570-1610nm<\/span><\/span> <\/p><\/td>
        16<\/span><\/span> <\/p><\/td>
        L band<\/span><\/span> <\/p><\/td>
        -6<\/span><\/span> <\/p><\/td>
        CW<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-IM-CSC107A<\/a><\/span> <\/p><\/td>
        1525-1565nm<\/span><\/span> <\/p><\/td>
        10<\/span><\/span> <\/p><\/td>
        C band<\/span><\/span> <\/p><\/td>
        -11<\/span><\/span> <\/p><\/td>
        直接調制<\/span><\/span> <\/p><\/td><\/tr>
        DL-ASE-IM-CSCL107A<\/a><\/span> <\/p><\/td>
        1525-1610nm<\/span><\/span> <\/p><\/td>
        10<\/span><\/span> <\/p><\/td>
        C+L band<\/span><\/span> <\/p><\/td>
        -16<\/span><\/span> <\/p><\/td>
        直接調制<\/span><\/span> <\/p><\/td><\/tr><\/tbody><\/table>

        <\/p>
        筱曉自主研發ASE光源<\/strong><\/span><\/p>
        <\/span><\/span> <\/p>
         <\/span><\/p>
        1.0 產品概述<\/h1>
        筱曉光子的ASE5000系列是一款高穩定度，高輸出的<\/span>C-Band ASE<\/span>光源，主要用于<\/span>C-Band<\/span>光學器件，光纖通訊設備的測試和光纖傳感等領域的應用。<\/span> <\/p>
        ASE5000有三種外型結構模式，可適應不同客戶的需求。<\/span> <\/p>
        2D型：桌面式（便攜式），適合實驗室或野外應用。<\/span> <\/p>
        M1、<\/span>M2<\/span>型：模塊式，提供<\/span>OEM<\/span>。<\/span> <\/p>
        3J型：插件式，可集成到<\/span>OElabs OS8000 3U機架，光源綜合平臺。<\/span> <\/p>
        2.0 產品特點<\/h1>
        ? 高穩定度，高輸出<\/p>
        ? 高增益平坦（可選）<\/p>
        ? 高光譜帶寬<\/p>
        ? 完善的RS232<\/span>監控指令<\/span> <\/p>
        ? 多種外型結構，適應不同的應用<\/p>
        ? 業界優異的性能價格比<\/p>

        <\/p>

        <\/p>
        3.0 主要應用<\/h1>
        ? 光學器件測試，DWDM<\/span>，<\/span>ISO<\/span>，<\/span>PIOC<\/span>，<\/span>FBG<\/span> <\/p>
        ? 光纖通信設備，EDFA<\/span> <\/p>
        ? 光纖傳感領域應用<\/p>
        ? 實驗室<\/p>

        <\/p>
        4.0 技術參數<\/h1>
        性能<\/span><\/span> <\/p><\/td>
        指標<\/span><\/span> <\/p><\/td>
        補充<\/span><\/span> <\/p><\/td><\/tr>
        Min.<\/span><\/span> <\/p><\/td>
        Typ.<\/span><\/span> <\/p><\/td>
        Max.<\/span><\/span> <\/p><\/td><\/tr>
        工作波長<\/span><\/span> <\/p><\/td>
        (nm)<\/span><\/span> <\/p><\/td>
        1528<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        1564<\/span><\/span> <\/p><\/td>
        C-Band<\/span><\/span> <\/p><\/td><\/tr>
        輸出光功率<\/span><\/span> <\/p><\/td>
        (dBm)<\/span><\/span> <\/p><\/td>
        13<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        ASE5013<\/span><\/span> <\/p><\/td><\/tr>
        17<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        ASE5017<\/span><\/span> <\/p><\/td><\/tr>
        20<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        ASE5020<\/span><\/span> <\/p><\/td><\/tr>
        10<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        ASE5110<\/span><\/span> <\/p><\/td><\/tr>
        13<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        ASE5113<\/span><\/span> <\/p><\/td><\/tr>
        16<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        ASE5116<\/span><\/span> <\/p><\/td><\/tr>
        輸出光功率可調范圍<\/span><\/span> <\/p><\/td>
        (dB)<\/span><\/span> <\/p><\/td>
        -6<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        0<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        輸出光功率調節方式<\/span><\/span> <\/p><\/td>
        (dB)<\/span><\/span> <\/p><\/td>
        In steps ±<\/span>0.1<\/span><\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        平坦度<\/span><\/span> <\/p><\/td>
        (dB)<\/span><\/span> <\/p><\/td>
        不規定<\/span><\/span> <\/p><\/td>
        ASE50××<\/span><\/span><\/span> <\/p><\/td><\/tr>
        -0.5<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        +0.5<\/span><\/span> <\/p><\/td>
        ASE51××<\/span><\/span><\/span> <\/p><\/td><\/tr>
        -1.0<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        +1.0<\/span><\/span> <\/p><\/td>
        ASE5200<\/span><\/span> <\/p><\/td><\/tr>
        -2.0<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        +2.0<\/span><\/span> <\/p><\/td>
        ASE5400<\/span><\/span> <\/p><\/td><\/tr>
        光譜密度<\/span><\/span> <\/p><\/td>
        (dBm/nm)<\/span><\/span> <\/p><\/td>
        -16<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        輸出光功率穩定度<\/span><\/span> <\/p><\/td>
        (dB)<\/span><\/span> <\/p><\/td>
        -0.005<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        +0.005<\/span><\/span> <\/p><\/td>
        15 Minutes<\/span><\/span> <\/p><\/td><\/tr>
        -0.01<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        +0.01<\/span><\/span> <\/p><\/td>
        8 hours<\/span><\/span> <\/p><\/td><\/tr>
        光纖類型<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        SMF-28 with 900μ<\/span>m loose tube<\/span><\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        光纖連接器<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        FC/PC, FC/APC<\/span><\/span> <\/p><\/td>
        SC可選<\/span><\/span><\/span> <\/p><\/td><\/tr>
        SNMP網管接口<\/span><\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        RJ45<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        通信接口<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        RS232<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        供電<\/span><\/span> <\/p><\/td>
        (V)<\/span><\/span> <\/p><\/td>
        90<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        265<\/span><\/span> <\/p><\/td>
        220VAC<\/span><\/span> <\/p><\/td><\/tr>
        30<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        72<\/span><\/span> <\/p><\/td>
        -48VDC<\/span><\/span> <\/p><\/td><\/tr>
        功耗<\/span><\/span> <\/p><\/td>
        (W)<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        50<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        工作溫度<\/span><\/span> <\/p><\/td>
        (℃<\/span>)<\/span><\/span><\/span> <\/p><\/td>
        0<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        70<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        存儲溫度<\/span><\/span> <\/p><\/td>
        (℃<\/span>)<\/span><\/span><\/span> <\/p><\/td>
        -40<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td>
        +85<\/span><\/span> <\/p><\/td>
         <\/span> <\/p><\/td><\/tr>
        尺寸<\/span><\/span> <\/p><\/td>
        (<\/span>“<\/span>)<\/span><\/span> <\/p><\/td>
        11×<\/span>13<\/span>×<\/span>3.5<\/span><\/span><\/span> <\/p><\/td>
        2D<\/span><\/span> <\/p><\/td><\/tr>
        (mm)<\/span><\/span> <\/p><\/td>
        90×<\/span>70<\/span>×<\/span>18<\/span><\/span><\/span> <\/p><\/td>
        M1<\/span><\/span> <\/p><\/td><\/tr>
        115×<\/span>89<\/span>×<\/span>18<\/span><\/span><\/span> <\/p><\/td>
        M2<\/span><\/span> <\/p><\/td><\/tr>
        200×<\/span>25<\/span>×<\/span>128<\/span><\/span><\/span> <\/p><\/td>
        3J<\/span><\/span> <\/p><\/td><\/tr><\/tbody><\/table>

        <\/p>

        <\/p>

        <\/p><\/div>
                                
        		
                            
        
                                
                    
        
                
                
        
                    
        
                        
                            
        
                                
                                    
        
                                        
        
                                            在線詢盤/留言 請仔細填寫準確及時的聯系到你! 
                                        
        
                                       
        

        




        











        

	
	

        
                                        
        
                                            
          
                                                
                                                    
        • 您的姓名：
                                                        *
                                                        
        • 聯系手機：
                                                                *
                                                                
        • 固話電話：
                                                                        *
                                                                        
        • 聯系郵箱：
        • 所在單位：
        • 需求數量：
                                                                                        *
                                                                                        
        • 咨詢內容：
                                                                                                
          
                                                                                                
                                                                                            
          • 
                                                    
        • 您要求廠家給您提供：
          
                                                              
                                                        規格型號
                                                        付款條件
                                                        產品目錄
                                                        最低訂貨量
                                                        運送資料
                                                        提供樣本
                                                        庫存情況
                                                        包裝材料 
          • 
                                               
                                            
        
                                        
        
                                            







        
                                    
        
                                        		
                            
        
                                
                    
        
                
        
                
        
                    
        
                        
                            
        
                                
                                    版權聲明：以上所展示的信息由會員自行提供，內容的真實性、準確性和合法性由發布會員負責。機電之家對此不承擔任何責任。
                                        友情提醒：為規避購買風險，建議您在購買相關產品前務必確認供應商資質及產品質量。
                                
                            
        
                                
                    
        
                
        
            
        
         
        
        
        
        
        
            
            
        
                
        
                    今日最新產品
        
            
        
            
        
                
        
                    
          
                        
                    
        
                
        
            
        
            
        
            
        
            
                
            
        
            
        
            
        
                
        
                    PLC精品
        
            
        
            
        
                
          
                    
                
        
            
        
            
        
            
        
            
                
            
        
            
        
            
        
                
        
                    熱門產品
        
            
        
            
        
                
          
                    
                
        
            
        
            
        
            
        
        
        
    
    

        
    
        機電之家網 - 機電行業權威網絡宣傳媒體
        
    關于我們 | 聯系我們 | 廣告合作 | 付款方式 | 使用幫助
        | 會員助手 | 免費鏈接
    
        Copyright 2026 jdzj.com All Rights Reserved??技術支持：機電之家 服務熱線：0571-87774297
        
    
        網站經營許可證:浙B2-20080178
        
    
        

        




主站蜘蛛池模板：
国产日韩精品视频|
久久久久成人网|
国产日韩欧美精品在线观看|
91国产中文字幕|
国产精品美女久久久免费|
精品国偷自产一区二区三区|
日韩欧美视频网站|
久久资源av|
久久久久久国产精品久久|
人人妻人人澡人人爽精品欧美一区
|
日韩av资源在线|
久久精品99久久香蕉国产色戒|
日本不卡一二三区|
日韩中文字幕av在线|
国产精品美女www|
国产欧美在线播放|
日韩欧美亚洲v片|
国产精品丝袜一区二区三区
|
久精品国产欧美|
欧美亚洲日本在线观看|
精品国产网站地址|
日韩中文视频免费在线观看|
国产精品裸体一区二区三区|
国产免费亚洲高清|
久久激情五月丁香伊人|
国产精品av网站|
午夜精品99久久免费|
久久久国产精品一区|
日产中文字幕在线精品一区|
国产成一区二区|
亚洲欧美在线网|
婷婷久久伊人|
国产精品亚洲a|
欧美一区二区视频在线播放|
久久99影院|
精品久久蜜桃|
国产区精品在线观看|
国产精品久久久久99|
日本一区免费看|
一区中文字幕在线观看|
日本国产中文字幕|