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
Mr. Maxwell was very kind
Maxwell先生很好心
What do you dislike most about this movie?
这部电影你最不喜欢什么？
He entered the cell and presented the letter to the aristocrat.
狱卒走进牢房，将信交给贵族。