Packless valve
[化] 无填料阀
🧩 词语组成解析
[化] 未包装的; 无填充的; 无填料的
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
Richard tells me you're a doctor.
Richard告诉我您是医生。
Wit bought is better than wit taught.
不经一事，不长一智。
We had a damaged shipment from you.
你们送来的货有损坏。