The experimental bench for applying vacuum pressure difference method was used for in-line testing, of which the exactness is up to over 98%.
采用真空压差法的试验台用于在线检测，准确性达98%以上。
A new testing method of vacuum-pumping for bulkiness property of three-dimensional crimp polyester staple fibers was introduced.
介绍了一种新的测试三维卷曲涤纶短纤维的膨松性能的方法——抽真空法。
The presented evaluation method may provide a reference for evaluating the uncertainty about the total leak rate method of spacecraft and vacuum leak testing method.
该评价方法可以为航天器的总漏率测试法和真空检漏法的不确定度评定提供一定的参考依据。
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