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, how much broccoli do I need for seven people? Richard
七个人吃需要多少花椰菜
I think exactly the same way.
我完全同意。
you might include a couple of heady growth stocks in your portfolio,alongside your more pedestrian in vestments.
你可在投资组合中包括几项有令人陶醉的增值前景的增长股，和其他比较平淡的投资项目放在一起。