1、轻负载开关
... underload starter 具有轻负载开关的电动机起动器 underload switch 轻负载开关 underload 欠载 ...
2、欠载开关
... underload relay 欠载继电器 underload switch 欠载开关 underlying refrigerator 下置式冰箱 ...
3、[电]轻载开关
... 轻载继电器 underload relay 轻载开关 underload switch 轻载试验 电机的nlight-load test ...