The air leak tester of AL-1000A belongs to differential pressure type. It is a high precision detecting transducers. It is much economical and widely applied to seal test of product parts.

1000A系列检漏仪采用差压法检测原理，是一款高精度的检测仪器，广泛应用于多种产品的密封性检测。

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The servomechanism of guarding leak for the test of high pressure oil seal was developed, and its structure was introduced.

开发了高压油封实验时防泄漏自动控制装置，并介绍了其结构。

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This test-bed is mainly used for high and low pressure seal of High-pressure hose.

该试验台主要用于高压胶管的高低压密封。

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Most of the technical issues covered in the report, such as the failure of a crucial cement seal and the misinterpretation of a key pressure test, have been raised by other investigations.

WSJ: Gulf Disaster Tied to BP's Lack of 'Operating Discipline'