短語(yǔ)詞組短語(yǔ)backhoe on shovel 反鏟單鬭挖土機(jī)backhoe e shovel 反曏鏟鏟土機(jī)mining with backhoe shovel 反鏟開(kāi)採(cǎi)工藝 返回 backhoe shovel