backing n.后退,衬背,后援,支持者衬...backing-out 取消,退出,逆序操作...backing a warrant 背书逮捕状...backing-off lathe 铲齿车床...busy-backing 忙碌地回答...aluminum foil backing paper 铝箔衬纸...alloy backing 合金牙背...backing memory 后备存储器...aluminum foil with paper backing 垫纸铝箔...silicon backing wafer 硅衬片...backing sheet 支撑片,备用表副份...backing stage 前级...backing weld(ing) 打底焊...backing sand 背砂...backing up 回投,回冲,回行...welding backing 焊接衬垫...backing vacuum 前级真空...backing pump 前级泵...backing storage 后备存储器...backing paper 背纸,底子纸...backing board 底板...
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