严密性试验指的是为了保证煤气管道和煤气设备区域的空气符合国家规定的卫生标准，防止煤气中毒，应使煤气管道和煤气设备完全严密。在大修、改建或新建的煤气管道和设备在投产前所进行的打压试漏过程称为严密性试验。
... 严重错误码：error deverity code 严密性试验：test on tightness 严厉批评;限制;狭窄：stricture ...
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阀门严密性试验 VALVE LEAK TEST ; Valve tight shut-off test
仪表管路严密性试验 leakage test of instrument tube
锅炉蒸汽严密性试验 steam leakage test of boiler
管路严密性试验 leakage test for instrument tube
管道严密性试验 leak test
真空严密性试验 vaccum leakage test ; vacuum system tightness test
主汽门严密性试验 main steam stop valve leakage test
管道系统严密性试验 tightness test of piping system
制冷设备严密性试验和试运行的技术数据，均应符合规定。
The cold equipments in system tight experiments with the technique data that try the movement, all should meet the provision.
闭水试验和闭气试验是无压管道进行严密性试验最常采用的两种试验方法。
Two commonly used methods of pressurization test of pipelines with free-surface in best common are close water test and close gas test.
根据GEA空冷装置及机组运行特点，总结空冷机组真空严密性试验的基本方法和相关操作。
This paper introduces the operational characteristics of the GEA Air Cooling Unit, and summarizes the basic method and relative operation of the vacuum leakage test of Air Cooling Units.
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