Objective: To investigate the application of high vacuum method in phacoemulsification and evaluate its effect.
前言：目的：探讨高负压在超声乳化手术中的应用，并对其效果进行评价。
Therefore, vacuum plating is a prospective diamond surface treatment method.
真空镀是一种很有前景的金刚石表面处理方法。
This article introduces the general design method of atmospheric vessel's vacuum relief.
介绍了常压容器真空泄放设计的一般方法。
The vacuum preloading method was studied.
对真空预压法的机理进行研究。
The vacuum preloading method was studied.
对真空预压法的机理进行研究。
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