There should be regular leak tests on the chamber when a vacuum phase is part of the cycle.
如灭菌程序中含抽真空，则应定期对腔室进行检漏试验。
There should be frequent leak tests on the chamber when a vacuum phase is part of the cycle.
如果灭菌循环中有真空阶段，要经常进行泄露检查。
An experimental research has been taken on heat efficiency, startup behavior, isothermal characteristics of a vacuum phase change heating system using a new kind of compound working medium.
利用新型复合工质对真空相变供热系统进行了热效率、启动特性、等温特性的实验研究。
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