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
We had a good day.
我们今天玩得很开心。
Will you plan to join me for dinner?
你要跟我一起吃饭吗？
What a strong wind! It's blowing strongly.
好大的风啊！风刮的好大。