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B 开头的英语单词（共 188,305 个）
backing board
[机] 底板
backing box
填料函
backing bur
里小可毛，夹里可毛
backing burr
毛圈喂纱轮
backing card
衬靶纸
backing case
包装箱
backing coil
补偿绕组,反接绕组
backing condenser
前级冷凝器
backing copy
[计] 备用拷贝
backing cough
剧烈的干咳
backing deal
顶板
backing device
衬垫装置
backing diaphragm
包装衬膜
backing distance
逆行距离
backing dog
[新西兰英语](跳到羊背上以驱赶羊群的)牧羊狗
backing down
na. 放弃权利等；打退堂鼓
backing eccentric rod
后行偏心杆
backing fabric
[纺] 底布
backing field
反方向磁场
backing film
底片
backing frame
装片框
backing gas
背衬气体;背面保护气体
backing groove
面坡口
backing groove of weld
焊缝反面坡口
backing light
【戏剧】(舞台上为后景或某道具提供漫射光照明的)后照灯,背向灯[亦作 backing strip light,backing strip]；= backup light
backing line
前级管路