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
I told you you'd like it. I've been doing this for years.
我告诉过你你会喜欢的。我多年来一直从事这项活动。
So he is gradually getting used to thinking in English.
因此他正养成用英语思维的习惯。
but ever since he moved in, he has had trouble with cars and their owners.
但自从搬进去后，就和汽车及车主们发生了磨擦。