“真空”造句

元帅迈过真空吸尘器，脚步沉重地走出了房间。
The Marshal stepped over the vacuum-cleaner and stumped out of the room.

真空包装的火腿片应在食用前30分钟把包装除去。
Vacuum-packed ham slices should be unwrapped 30 minutes before serving.

即使平放，这个真空水杯也是滴水不漏。
The flask is completely watertight, even when laid on its side.

• #真空