direct acting type regulator 直接作用式调节器
direct acting type recording voltmeter 直接作用式记录伏特计
direct acting type recording wattmeter 直接作用式记录瓦特计
direct acting type recording ammeter 直接作用式记录安培计
indirect acting type recording ammeter 间接作用式记录安培计
two stroke double-acting type 二冲程双作用式
two stroke single-acting type 二冲程单作用式
indirect acting type recording voltmeter 间接作用式记录伏特计
indirect acting type recording wattmeter 间接作用式记录瓦特计
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