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
Richard! I haven't brushed my hair. Richard
我头发都没有梳。
You ought to have that coat cleaned and pressed.
你应该把那件大衣清洗并且压一下。
She was right! It was!
她说的对，画确实如此。