开关套件 switch kit
开关套盖子 cover of the Switch set
低压成套开关设备 Low-voltage switchgear assembly ; Low-voltage Switchgear Assemblies
灯开关衬套 lighting switch bushing
选择性滑套开关工具 selective downshift tool
直流电源成套开关设备 Direct-current switchgear assembly
低压成套开关柜 low-voltage switchgear assemblies
关闭打开的套接字 lrs_close_socket
微动开关护套 MICRO SWITCH COVER
每一套装置应包括一个主开关和电流表，电流表的刻度范围约20安培。
Each unit should include a main switch and ammeter with a scale of about 20 ampere capacity.
设计了一套采用光电开关测量高速列车进出隧道瞬时速度的实验装置。
An experimental unit for measuring instantaneous speed of high speed train passing through tunnel with a photoelectrical switch is designed.
既然通断性测试往往涉及到多导线装置，因此利用一套开关系统将欧姆表自动连接到每根导线就非常有用。
Given that continuity testing often involves multi-conductor devices, a switch sys tem is useful to connect the ohmmeter to each conductor automatically.
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