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
I sure do.
我当然记得。
Please be quiet.
请安静点。
I told you to drive slowly, Gary.
加里，我刚才叫你开慢点吧。