Pilot(operated)valve
[化] 导阀
🗣️ 情景例句
Yes, I went to the aerobics class today.
去了啦， 我上了有氧运动课了。
A secret between more than two is no secret.
两人以上知道的秘密就不算秘密。
When can you come around to discuss some details with us?
什么时候可以过来和我们讨论细节呢？