contact face

• 接触面

contact face的用法和样例：

例句

1. Slowly pull the assembly outward to open check allowing exposure of the seat and clapper contact area for cleaning.
   慢慢将止回阀往外拉，打开止回阀，使得阀座和阀瓣接触面暴露出来便于清洗。
2. We have seen oil reinvasion above this contact,water reinvasion below,or no reinvasion at all.
   我们能看到油的二次侵入在接触面的上部，水的二次侵入在接触面的下部或者是根本没有。