Ultrahigh vacuum seal
[化] 超高真空密封
🧩 词语组成解析
a. 超高的,特高的
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
my friend Virginia Martinelli is a real-estate agent.
我的朋友Virginia Martinelli就是个房地产仲介。
A little is better than none.
聊胜于无。
that the annual drug bill of the Health Services is mounting to astronomical figures
卫生部门的年度药费上升到了天文数字，