【化】 前级真空
在线英汉词典
backing vacuum
相关词语
- 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 a bill 背书担保一张票据...
- backing sand 背砂...
- backing up 回投,回冲,回行...
- welding backing 焊接衬垫...
- backing pump 前级泵...
- backing paper 背纸,底子纸...
- backing board 底板...