Mechanical seal
[化] 机械密封; 端面密封
🧩 词语组成解析
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
Nice to meet you, Mrs. Cooper.
很高兴见到你， Cooper太太。
Happiness in my work is most important to me.
工作中的乐趣对我来说最重要。
Can you see it?
你看见了吗？