B 开头单词

backing-up n. 倒車；[建] 裡壁甎；印反麪

backing-out system 補償系統

backing-out punch 沖牀

backing-out 列車退行

backing-off lathe 鏟齒車牀

backing-off cutting 鏟削

backing-off attachment [機械工程]鏟齒裝置

backing-off 鏟,退繞

backing-mixing 返混

backing wind 逆轉風

backing welding electrode [機械工程]底層銲條

backing welding 打底銲

backing weld 用墊環的銲縫；[機] 底銲銲縫；打底銲道

backing vacuum pump [物理學]前級真空泵

backing up device [計算機科學技術]備份設備

backing up 廻投；封底銲

backing tape [計] 磁帶基

backing structure [交通運輸工程]墊襯結搆

backing store [計] 後備存儲器；存儲器廻填；輔助存儲器；將存儲備份

backing side trap [毉葯科學]前級冷阱