分析了密封环境气氛中水分的主要来源，给出其水分含量的计算公式和水分平衡方程。
The main source of moisture in the sealed environment is analyzed; the formula of moisture content and equation of equilibrium are given.
无论您喜欢小麦面包，白面包或另一种类型的面包，根据环境的湿度，在室温下，如果面包密封在其原来的包装里，它的保质期可长达四天。
Whether you prefer wheat, white, or another type of bread, it will stay fresh for up to 4 days at room temperature — depending on humidity — if sealed in its original wrapping.
他们同时享受着空调带来的舒适环境，停车位的便利，以及密封包装的卫生。
They are also enjoying the comfort of air-conditioning, the convenience of a parking space, and the hygiene of airtight packaging.
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