短語(yǔ)詞組短語(yǔ)chain n gearing 鏈傳動(dòng)裝置chain transmission gearing 鏈傳動(dòng)裝置rooler chain gearing 滾子鏈傳動(dòng)gearing chain [機(jī)]傳動(dòng)鏈;傳動(dòng)循環(huán)鏈;繙譯 返回 chain gear