detachable valve seat

• 可拆下的阀座

detachable valve seat的用法和样例：

例句

1. Disc is guided by the mating surface of the seat.
   可通过所匹配的阀座表面导引阀瓣。
2. Shaded area refers to recommended seat rating.
   阴影部分请参阅所推荐的阀座额定参数。