其中一些气体，如，氮，氧，氩， 氖等，作为空气的永久组成成分，总是以固定的比例存在于大气中。
Some of them, such as nitrogen, oxygen, argon, neon, and so on, may be regarded as permanent atmospheric components that remain in fixed proportions to the total gas volume.
此预测模型可以应用到几何成比例、浓度相同、不同体积的矿井瓦斯-空气混合气体爆炸超压预测。
The model could also be used to the mine gas explosion experiments with the same geometry, the same concentration and different volume.
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