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
about taking care of babies, I assure you.
如何照顾小孩， 我向你保证。
Don't take it the wrong way.
别搞错了。
One packing case was crushed.
有一个箱子全压坏了。