Valve cylinder
[化] 阀筒
🧩 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
You don't need to do that, Grandpa.
你不用这样，爷爷。
The best physicians are Dr. Diet, Dr. Quiet,and Dr. Merryman.
节食博士，静心博士，欢喜博士，三者都是最好的医师；饮食少，休息好，快乐多是却病延年之方。
From the Skeppsbron and surrounding islands the people watched this thing of beauty begin to spread her sails and catch the wind.
人们从斯开波斯布朗和周围的岛屿前来观看这艘美丽的战船扬帆起航，乘风前进。