Methane is a colorless, odorless and flammable substance which forms a major component in natural gas.

甲烷是一种无色，无味，易燃物质，是天然气的重要组成部分。

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The spell seems to involve some sort of fire spirit, not just a flammable substance, since a flaming figure is briefly visible overhead when the firebomb bursts.

因为在火炸弹爆炸时，一个着着火的人形轮廓在上空短暂的出现，所以这个符咒不仅仅是由可染物质组成的，它似乎包括了一些火灵魂。

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All flammable materials contain phlogiston that is liberated in burning, leaving the "dephlogisticated" substance in its "true" calx form.

所有易燃材料均含有在燃烧过程中释放的发火物质，使“去表皮化的”物质保持其“真正”的杯状形式。

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