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
That's ridiculous.
太可笑了。
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大约4点钟正在做什么？
Yes. I said, could I borrow your radio, please? Mine's broken.
好的。我说，我想借用您的收音机，可以吗？我的收音机坏了。