Bimetallic(spring cone) seal
[化] 双金属密封
🧩 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
The pay is better and the work is much more interesting.
薪水很高，工作也更有意思。
I agree.
我也这么想。
Where is it?
在哪里？