backacting的知识聚焦

backactingshovel词语：backactingshovel解释：反铲挖土机,反向铲词性：名词词典：建筑专业英汉词典backactingshovel相关解释backactingshovel〔名词〕反铲...

backhoe(trenchhoe,backactingexcavator)词语：backhoe(trenchhoe,backactingexcavator)解释：（具有伸缩挖掘装置的）锄耕机词典：专利专业英汉词典...