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B 开头的英语单词（共 188,305 个）
backing up
[机] 回投, 回冲, 回行
backing up of sewage
污水倒灌
backing vacuum
[化] 前级真空
backing vacuum pump
前级真空泵
backing vessel
里壁容器
backing weld
底焊;底焊焊缝
backing weld(ing)
[化] 打底焊
backing welding
打底焊
backing wind
逆转风
backing windows
备份视窗
backing yarn
背面经纱
backing-bar
反角铁；衬垫板条；撑杆
backing-off
退绕;铲
backing-off attachment
铲齿附件;铲磨工附件
backing-off cone clutch
反转离合器
backing-off cutting
[机] 铲削
backing-off lathe
[机] 铲齿车床
backing-off rod
退绕桿，回纱桿
backing-off wheel
退绕轮，反转轮
backing-out
[计] 取消, 退出, 逆序操作
backing-out punch
顶出器;冲床;冲床顶出杆
backing-ring
[机] 垫环
backing-space technique
[网络] 前级空间技术；累积法
backing-strip
条状垫板
backing-up roll
[机] 支撑轧辊