When the application is more critical, and the sealing compound may fail due to high heat or pressure, NPTF Dryseal threads are used.

当密封要求严格时，密封剂可能由于高温高压会失效，这时可以采用NPTF干密封螺纹。

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As special function is required, the construction of polysulfide sealing compound turns into a key procedure in project of a sewage treatment plant.

由于特殊功能要求，聚硫密封膏的施工成为某污水处理厂工程的关键工序。

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The testing result shows that sealing compound performance is good, costs are low, and is suitable for static seal of pipe line and valve under different temperature conditions.

测试结果表明，该密封胶性能优良，成本低廉，可适用于不同温度条件下的管线阀门等静密封。

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One senior military official, who asked not to be named because he is not permitted to speak to the press, said that Pakistani army troops were in fact providing backup support when the United States began its operations inside the compound where bin Laden had been staying, including sealing off the neighborhood where the compound was located.

FORBES: Pakistan Military Knew About Bin Laden Raid Well In Advance Of Attack