Firedamp is any flammable gas found in coal mines, typically coalbed methane. [1] It is particularly found in areas where the coal is bituminous. The gas accumulates in pockets in the coal and adjacent strata and when they are penetrated the release can trigger explosions.

Firedamp is a gas that occurs naturally in coal seams. The gas is nearly always methane (CH 4) and is highly inflammable and explosive when present in the air in a proportion of 5 to 14 percent.

甲烷是最简单的烷烃化合物。其性质如下： - 物理性质：甲烷是一种无色、无味、无毒的气体，在常温下为无定形晶体，密度较大。 - 化学性质：甲烷是一种稳定的化合物，不与大多数常见物质发生反应。但在高温下，甲烷可与氧气反应，产生二氧化碳和水。甲烷还可通过氧化反应生成一氧化 …

firedamp，英语单词，主要用作名词，作名词时译为“沼气；甲烷”。 [1] N a mixture of hydrocarbons, chiefly methane, formed in coal mines. It forms explosive mixtures with air 沼气 …

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Dec 15, 2022 · Firedamp is a term for flammable gases (commonly methane) found in mines. The gases would leak from coal-bearing rocks and spread to the areas where miners worked.

本文提出用氨气敏电极快速测定沼气发酵中氨的方法. In the middle of there is on bridge as the bright firedamp light like electric lamp. 正中梁上挂着一盏如同电灯般亮的沼气灯. Accordingly, the function that rural development uses firedamp new technology great, meaning is far - reaching . 因此, 农村发展利用沼气新技术的作用重大 、 意义 深远.

Formed by complete combustion of firedamp or occurring naturally. Retrieved from Wikipedia CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/. Source URL: https://en.wikipedia.org/wiki/Safety_lamp. Coal mining was very dangerous owing to the presence of firedamp in many coal seams.

Firedamp is flammable gas found in coal mines. It is the name given to a number of flammable gases, especially coalbed methane. It is particularly found in areas where the coal is bituminous.

1. a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine. 矿山 沼气 爆炸 后 留下 的 一种 有毒 的 气体 混合物 （含 二氧化碳 、 一氧化碳 和 氮）。