短語詞組短語BAG BACKING 返回;前往backing board 墊板；底板；背紙板backing off 反饋；退繞；鏟齒backing run 背面焊接;打底焊道;倒車;焊根backing resistance 倒航阻力armour backing 裝甲背材backing maneuvers 倒車操縱backing device 襯墊裝置aluminium backing 鋁墊片;鋁敷層;鋁底座;鋁膜backing up 回投；封底焊backing material 基底材料backing weld 用墊環(huán)的焊縫；底焊焊縫；打底焊道backing plate 墊板；背板；制動(dòng)底板backing out 回退；現(xiàn)場(chǎng)恢復(fù)backing paper 底子紙；背紙backing store 后備存儲(chǔ)器；存儲(chǔ)器回填；輔助存儲(chǔ)器；將存儲(chǔ)備份backing pump 初級(jí)抽氣泵；前級(jí)泵backing welding 打底焊steel backing 鋼背；鋼襯墊carpet backing 地毯底布 返回 backing