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
Hey, let me take your picture!
嘿！让我给你拍一张照
How's your cousin?
你的姐妹好吗？
it is very rarely that one comes across a dead body, except, of course, on the roads.
但是，除非在路上，很少有人遇到这些动物的尸体，