All vacuum Chambers are helium leak tested.

所有的真空罐均为氦泄露检测设备。

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In addition, tubular membrane is dominatingly made of polyvinylidene fluoride (PVDF) with the integrated production technology and the membrane is tested with self-made leak hunting device.

另外，以聚偏氟乙烯(PVDF)为主要原料用管式膜一体化技术生产了管式膜，并通过自行设计的检漏装置对管式膜进行检测。

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Using fracturing fluid dynamic leak-off apparatus, fracturing fluid leak-off rate is tested on the core which containing single artificial fracture.

利用压裂液动态滤失仪，在含有单条人工裂缝的泥页岩岩心上测试了压裂液滤失速率。

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