A.圓形光纖接頭/面呈8度角并做微凸球面研磨拋光 B.卡接式圓形光纖接頭/微凸球面研磨拋光 C.方形光纖接頭/微凸球面拋光 D.圓形光纖接頭/微凸球面拋光
A.光纜 B.尾纜 C.尾纖 D.同軸電纜
A.50Ω B.75Ω C.100Ω D.120Ω