That explosion was triggered by an accumulation of gas in an unventilated tunnel.
爆炸是由于瓦斯气体在通风不良的矿井中聚集而产生的。
They found that in unventilated Spaces levels can build up and, over time, cause health problems such as allergies and asthma.
研究表明，在不透风的空间里，时间长了，会影响健康，出现过敏、哮喘等症状。
Some people criticized the passenger cabins for being hot and unventilated; others complained that the food in the area is too expensive.
有些人批评车厢闷热不通风，有些人则抱怨附近的饮食价格太高。
What triggers the explosion could be the overheated battery caused by extremely high temperature magnified by the windshield (glass) and the sealed (unventilated) vehicle cabin.
挡风玻璃以及封闭(不通风)的车厢放大了极端高温的影响，造成了电池过热，引发了爆炸。
What triggers the explosion could be the overheated battery caused by extremely high temperature magnified by the windshield (glass) and the sealed (unventilated) vehicle cabin.
挡风玻璃以及封闭(不通风)的车厢放大了极端高温的影响，造成了电池过热，引发了爆炸。
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