Pilot(operated)valve
[化] 导阀
🗣️ 情景例句
Keep along this road
沿着这条路
He bears misery best who hides it most.
最会隐瞒痛苦者，乃是最善忍受痛苦人。
Hey, Jim! Can I borrow your ruler?
吉姆， 我能借用一下你的尺子吧！