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
We could call it Deep Sleep Country Air.
我们可以称它为"沉睡的乡村空气"。
To youth I have but words of counsel -- work, work, work.
对青年人，我要奉劝几句话∶工作，工作，再工作。
It has been estimated that if the bridge were packed with cars, it would still only be carrying a third of its total capacity.
据估计，若桥上摆满了汽车，也只不过是桥的总承载力的1/3。