基本解釋[機(jī)械工程]鏟齒裝置詞組短語(yǔ)短語(yǔ)hinterdreheinrichtung relieving attachment backing -off attachment 鏟背裝置backing-off attachment更多詞組專(zhuān)業(yè)釋義機(jī)械工程鏟齒裝置