Injection piston
[化] 注射柱塞
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
🗣️ 情景例句
Only a five percent discount? How about twenty percent?
只打九五折？八折怎么样？
As you make your bed so you must lie on it.
自食其果。
Please do. We 're desperate for the material.
麻烦你了，我们非常需要这些材料。