“NPTF”造句，怎麼用NPTF造句

另一方面，NPTF螺紋的設計用於保*在整個牙形上產生足夠的變形以生成這種機械密封。

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.

當密封要求嚴格時，密封劑可能由於高溫高壓會失效，這時可以採用NPTF幹密封螺紋。