firedamp

沼气；甲烷英释中释na mixture of hydrocarbons, chiefly methane, formed in coal mines

1 This series distribution device is applicable for coal mine with firedamp or coal dust in the ambient..本系列配电装置适用于煤矿井下及其周围介质中有甲烷、煤尘等爆炸性混合气体的环境中。

2 People is hep but second birth the sources of energy has solar energy, wind energy, hydraulic, firedamp to wait..人们熟知的可再生能源有太阳能、风能、水力、沼气等。

3 It is to popularize firedamp pool actively, change bavin burning a red-letter day, protect silvan natural resources..二是积极普及沼气池，改燃节柴，保护森林资源。