pre-vacuum chamber 预抽室 ; 预处理时间
pre vacuum pump 预备真空泵 ; 预真空泵
pre vacuum 初真空
Pre-vacuum steam sterilizer pressure 预真空压力蒸汽灭菌
pure pre-vacuum 洁净预真空
pre-vacuum-pumping 预抽真空
pre-vacuum sampling 预抽真空采样
Fractionated Pre-Vacuum 脉动预真空
Car Pre-vacuum atmosphere furnace 台车式预抽真空保护气氛炉
The results show that, through controlling the melting rate, leak pressure and pre-vacuum rigidly, the oxygen homogeneity can effectively improve.
结果表明：通过熔炼速度、漏气率、预真空等关键因素的严格控制，可大幅度提高大规格纯钛铸锭中氧元素的均匀性。
The Pre-filled syringe filling & stoppering machines are available in many types such as low speed, high speed, vacuum, non-vacuum, etc.
公司生产的预充式注射器灌装加塞设备涵盖了低速、高速，真空与非真空诸多品种。
Meat pigeons were used as an ingredient and made into delicious baby pigeon tins through salting, pre-boiling, smudging, roasting, vacuum packaging and sterilizing.
以珍禽肉鸽为原料经腌制、预煮、烟熏、烤制、真空包装、杀菌而制成美味的乳鸽软罐头。
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