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Often as in engine bed and mechanical device local lighting and control wiring power source.
常作为机床及机械设备中局部照明及控制线路电源。
youdao
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A small mechanical device or control; a gadget.
小装置,小机械小的机械装置或控制;小巧的机械。
youdao
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A small mechanical device or control; a gadget.
小装置,小机械小的机械装置或控制;小巧的机械。
youdao