NPTF造句

On the other hand, NPTF threads are designed to ensure that sufficient crushing of the entire thread form will take place to produce a mechanical seal.

另一方面，NPTF螺纹的设计用于保*在整个牙形上产生足够的变形以生成这种机械密封。

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。