Highest vacuum seal
[化] 强真空密封
🧩 词语组成解析
[计] 最高
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
Thank you.
谢谢。
Without practice, hopes will be reduced to zero.
没有实践，希望会化为乌有。
The study of custom can be profitable only after certain preliminary propositions have been accepted,
只有在某些基本的主张被接受下来、同时有些主张被激烈反对时，