... jack 起重机;千斤顶 jack box 插头箱 jacking point 起重支点 ...
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插头式电阻箱 [电] resistance box with plug
音箱插头 speak on ; speaker plug
冷藏集装箱插头 reefer plug
冷藏箱插头 Reefer Plugs
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配电箱，开关箱有必要履行“一机”“一闸”“一漏电”，电源进线端制止选用插头和插座做活动衔接。
The distribution box, switch box is necessary to perform a "machine" "gate" "leakage", power line end stop using the plug and socket connection to do activities.
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船上有多少个冷藏箱电源插头？
How many reefer plugs has vessel?
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