家用电热器具
home electrical appliance
换向器云母板
Rigid mica material for commutator separators
薄膜热电器件
thin film thermoelectric device
差作用热电堆
differential thermoelectric pile
厂用电电压
service voltage
auxiliary power supply voltage
service power voltage
厂用电电压等级选择
Selection of Auxiliary Power Voltage Grade
厂用电电源
high voltage auxiliary power
船用电器设备
marine electrical equipment
大代耳热电电流计
Duddell’s thermo-galvanometer
thermo-galvanometer
Duddell’s