如果同易燃低温液体有关，在异常大气条件下，易燃混合物地带会延伸到空气中的水蒸汽的浓缩产生的正常雾云以外。
If a flammable cryogenic liquid is involved, the flammable mixture zone, under unusual atmospheric conditions, may extend beyond the normal fog cloud produced by condensing water vapor in the air.
利用不同的气体在某些比例下混合而形成一个易燃的混合物的压缩气体。
Any compressed gas which, when mixed with air in certain proportions, forms a flammable mixture.
如果易燃气体供应无法切断，不断逸出的未燃气体会在空气中形成爆炸性混合物。
If the flammable gas supply cannot be shut off, the continued escape of unburned gas can create an explosive mixture in the air.
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