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
This dog is well trained.
这只狗受过很好的训练。
You are bigger than I am.
你比我大
The site chosen was an island at the entrance of New York Harbour.
场地选在了纽约港入口处的一个鸟上。