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汉语拼音：zì rán

自发地着火燃烧。常由缓慢氧化作用引起。如棉花、干草、煤等可燃物过多地堆积，在通风不好的情况下，缓慢氧化产生的热不易散掉，温度升高到着火点即发生自燃。

• And in some cases, not the entire body is burned and we'd expect to see burn marks all over the body in a traditional house fire scenario.

  并且在一些自燃案例中，并非整个身体都烧了个透，我们所期待的那些烂俗火灾剧本中的遍身烧痕也并没出现。

• While Swift was writing these songs, Lautner's pointy werewolf ears must have been burning nonstop, to the point of spontaneous combustion.

  虽然斯威夫特在写这些歌，劳特纳的尖尖的耳朵一定是狼人燃烧马不停蹄，到自燃点。

• Coal-waste rocks as an industrial solid waste, is a primary environment problem in diggings due to its spontaneous combustion.

  煤矸石是我国最大的工业固体废弃物，煤矸石自燃是矿区主要的环境问题之一。

• An official with the investigation team also says explosion can be ruled out as the cause of the fire.

  调查组的一位官员还说此次爆炸可以排除自燃的可能性。

• Overall however earth is still quite sour and therefore cannot really pass in full into the Great Central Sun dream without combusting.

  然而总体而言，地球仍然是非常酸涩的，因此，还无法真正完全进入到大中枢太阳梦想中而不自燃。

• The wedges would then ignite spontaneously in the air and fall to the ground, burning for five or 10 minutes, he said.

  这些物块是于空气中自燃后掉落地面的，燃烧可以整整持续5到10分钟。

• Higher-octane gasolines prevent this sort of early combustion.

  高辛烷值汽油是一类不容易自燃的燃料。

• The concept of inferior spontaneous combustion state in goaf is presented regarding the coal goaf with high risk of spontaneous combustion.

  针对高危自燃采空区遗留煤发生自燃问题，提出采空区亚自燃状态的概念。

• Spontaneous combustion is one of the factors that result in the great disasters in coal mine.

  自然发火是造成煤矿重大灾害事故的主要原因之一，义马矿区属易自燃煤层，发火期较短。