【建筑】旋转式上层建筑，挖掘机（挖掘机）

revolving superstructure (upper machinery) dredger (excavator)

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相关词条

REVOLVING cabinets

monthly revolving credit

revolving drum press

revolving-cannon

rotary chute (revolving chute) blast furnace

paddle mill type revolving scrubber (log washer)

teasel raising machine (raising machine with revolving teasels)

revolving reverberatory furnace revolving melting furnace