Spool valve
[化] 短管阀; 柱形阀; 滑阀
🧩 词语组成解析
spool
[spu:l]
n. 线轴，线管;线轴状物;卷络的数量[长度];缠线框;
vt. 把…绕在卷轴上;缠绕;
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
Do you have any coupons?
你们有优惠卡吗？
I bought it at half price.
我花了半价买来的。
We offered them food and spoke to them kindly, but they remained motionless.
我们给他们东西吃，客客气气地同他们交谈，但他们却一动也不动。