空气不是一种特殊的气体，而是由许多气体混合成的。

Air is not a specific gas: rather, it is a mixture of many gases.

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特殊配方能使产品在冷空气中老化变化程度小。

The special material can make the product's intensity variety low in cool or air.

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特殊配方能使产品在冷空气中老化变化程度小。

The special material can make the product's intensity variety low in cool or air.

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