Make sure that all gas fires and central heating boilers are serviced annually.
确保所有的煤气取暖器和中央供暖的锅炉每年都检修一次。
Some fires were burning oil wells. Others were in natural gas wells.
有些是油井大火, 有些是天然气井大火.
At the same time, they issued smoke, inflamer produce a great lot of smother, so in fires, majority people got gas poisoning and asphyxiate and died.
同时发烟量大,在火灾中燃烧物产生大量浓烟使火灾中的大多数人员被有毒气体和烟雾熏倒窒息而身亡。
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