短語詞組短語sewage sump 污水坑;集污槽sump oil 污油;油槽存油;沉淀池油;油底殼存油mine sump [礦業(yè)]礦井水倉;煤礦水倉transfer sump 轉(zhuǎn)運水倉sump area 貯油槽區(qū)winch sump 絞盤油槽sump water 污水condensation sump 熱井oil sump 油池；貯油槽 返回 sump