Pilot(operated)valve
[化] 导阀
🗣️ 情景例句
Oh, not at all.
噢 一点也不。
Silence is more eloquent than words.
沈默是更有说服力的言词。
When I was a teenager, I felt that I was just young and uncertain --
我十几岁时，总感到自己年轻，有些事拿不准 --