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插座、插头和其它连接物(电器连接) Sockets plugs and other contacts [electric connections] 插头、插座及其他接触器(电接头) Plugs sockets and other contacts [electric connections] 表面覆有带电导体的玻璃 Glass covered with an electrical conductor 光学纤维(光导单纤维) Optical fibers [fibres] [light conducting filaments] 螺线管阀(电磁开关) Solenoid valves [electromagnetic switches] 真空电子管(无线电) Vacuum tubes [radio] 螺线管阀(电磁开关) Valves (Solenoid –) [electromagnetic switches] 方铅晶体(检波器) Galena crystals [detectors] 光导丝(光学纤维) Light conducting filaments [optical fibers [fibres]] 光电开关(电器) Cell switches [electricity] 扼流线圈(阻抗) Coils (Choking –) [impedance]
发布时间:2008-1-9 14:45:46 |