B 開頭單詞
backing-up n. 倒車；[建] 裡壁甎；印反麪
backing-out system 補償系統(tǒng)
backing-out 列車退行
backing-off lathe 鏟齒車牀
backing-off attachment [機械工程]鏟齒裝置
backing-off 鏟,退繞
backing wind 逆轉(zhuǎn)風
backing welding electrode [機械工程]底層銲條
backing welding 打底銲
backing weld 用墊環(huán)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(shù)]備份設(shè)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(jié)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