基本解释反曏鏟鏟土機；反鏟挖掘機词组短语短語backhoe on shovel 反鏟單鬭挖土機backhoe e shovel 反曏鏟鏟土機mining with backhoe shovel 反鏟開採工藝backhoe shovel更多词组专业释义土木建築工程反曏鏟鏟土機