“密封的”造句

某些种类的食物也可以装入密封的金属罐里。
Certain types of foods are also dispensed in pressurized canisters.

密封的飞机内很少需要补充氧气。
Supplementary oxygen is rarely needed in pressurized aircraft.

这是一封未密封的信, 不要看.
This is an unsealed letter, don't read it.