The official said the gas explosion was caused by a 'flame device' that a victim's son had been told was a propane heater.

这名官员说，天然气爆炸是由一个“火焰装置”引起，一名受害者的儿子被告知那是一个丙烷加热器。

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An experimental study was conducted of the high temperature and low oxygen air burning of propane and its flame characteristics along with a discussion of its possible industrial applications.

对丙烷的高温低氧空气燃烧及其火焰特性进行实验研究，并对其工业应用进行探讨。

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She checked on the propane grill on a chilly night and discovered the flame had been blown out.

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