Combination valve
[化] 复合阀
🧩 词语组成解析
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
Are you kidding?
你在开玩笑吗？
Karl must concentrate on his work.
卡尔必须集中精力于自己的工作。
The secretary told me that Mr.Harmsworth would see me.
秘书告诉我说哈姆斯沃斯先生要见我。