“真空”的英语？

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 co...

“真空”的拼音为：zhēn kōng...