Wine rapidly deteriorates in the presence of oxygen. Creating a vacuum above the wine dramatically reduces the oxygen levels in the bottle allowing the wine stay fresh for longer.
红酒及洋酒暴露在氧气环境下极易变质，在瓶内制造低氧低压的类真空环境可使酒保鲜较长时间。
Above the stratosphere, visible as a darker blue bands, are higher and thinner atmospheric levels that gradually fade away into the cold dark vacuum of outer space.
平流层之上，看上去深蓝色的地带，是稀薄的高层大气，逐渐过渡到冷而黑暗的外层空间的真空地带。
For this reason, a vacuum dryer is especially suited to drying a heat-sensitive material that degrades above a given temperature and would otherwise require a lengthy drying cycle.
基于这个原因，真空干燥机是一个特别适合干燥热敏感材料，降低上述给定的温度，否则将需要一个漫长的干燥周期。
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