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
Nowadays more and more people are without jobs.
现在越来越多的人失业。
None are so deaf as those who will not hear.
不愿倾听意见者最聋。
We'll wait and see what they say.
看看他们怎么说吧。