Hard vacuum seal
[化] 强真空密封
🧩 词语组成解析
hard
[hɑrd]
adj. 困难的;硬的;有力的;努力的;
adv. 努力地;猛力地;严重地;沉重地;
n. 英〉硬海滩，登陆处;
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
Radiation exposure can damage your genes and make them vulnerable to mutation.
辐射会破坏你的基因组织，使它们突变。
Though malice may darken truth,it cannot put it out.
恶意可以糟塌真理；但无法消灭真理。
A week later, Mr Brain rang Zheng Jie and spoke to a friend of his.
一周以后，布雷恩先生打电话给郑杰，接电话的是郑杰的一位朋友。