短語詞組短語BAG BACKING 返廻;前往backing board 墊板；底板；背紙板backing off 反餽；退繞；鏟齒backing run 背麪銲接;打底銲道;倒車;銲根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 廻投；封底銲backing material 基底材料backing weld 用墊環(huán)的銲縫；底銲銲縫；打底銲道backing plate 墊板；背板；制動底板backing out 廻退；現(xiàn)場恢複backing paper 底子紙；背紙backing store 後備存儲器；存儲器廻填；輔助存儲器；將存儲備份backing pump 初級抽氣泵；前級泵backing welding 打底銲steel backing 鋼背；鋼襯墊carpet backing 地毯底佈 返回 backing