communication device of water level
10kV standby power supply automatic switching device
contactless switching device
intelligentized switching device
switching device
切换装置
开关器件
配电装置
道岔转换设备
投切器件
倒换装置
交换组件
开关电器
交换元件
投切开关
P N P N 开关设备
开关掐
转辙机
交换机
1-Level Universal Implication
a road map towards universal suffrage
a universal social structure
balance unit of the universal joint spindle
Ball Universal Coupling
Boltzmann’s universal conversion factor
caculation method of universal soil loss equation
Cage type universal joint
carbon dioxide universal auto-arc welder
carson universal index formula
Ceresan universal nassbeize
constant speed universal joint with tripod
constant velocity universal joint