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汉语拼音：zhǎo qì

池沼地中含纤维素的有机物质，在隔绝空气的情况下受到细菌的分解作用所产生的气体。主要成分是甲烷。可做燃料和化工原料。自然界中沼气多从沼泽底泥中发生，故名。

1. 有机物质在与空气隔绝的条件下，经过微生物发酵而产生的一种以甲烷为主的可燃气体。因最初发现于沼泽中，故名。

• Department of Energy designated as a national fixed-point gas equipment units, with a strong technological base and manufacturing capacity.

  作为国家能源部指定的沼气设备定点生产单位，具有雄厚的技术基础和制造能力。

• "The changes in methane concentration at this time seem to be unique, " said the researchers, writing in the journal Nature Geoscience.

  “这个时期沼气密度的改变看起来非常独特”，研究人员称他们将这一观点发表于自然地球科学杂志。

• Methane is extremely easy to transport, and pipelines are a mature technology.

  沼气比较容易运输，并且输油管的技术已经发展得很成熟了。

• One idea is that the planet spews out methane gas, which freezes and keeps the surface covered with a blanket of fresh snow.

  一个想法是行星本身会放出含有甲烷的沼气，它会让行星结冰，并且使得表面长期覆盖一层雪。

• Methane molecules are easily blown apart by ultraviolet light from the Sun, so any methane around must have been released recently.

  沼气分子被来自太阳的紫外线照射后很容易炸裂分离开，所以任何附近的沼气肯定是最近释放出来的。

• Fruit tree farmers can buy one load of manure a year from a cow or pig farm to start their digester and add wood pruned from fruit trees.

  果树种植户每年可以从养牛养猪户那里购买一批粪肥建起沼气池，然后添加修剪下来的果树树枝。

• Biogas is usually produced through anaerobic digestion of organic materials.

  沼气通常是经过有机物材料的厌氧消化产生的。

• The problem of methane or coal dust in a mine's air is relatively easy to solve.

  沼气或者煤渣的问题解决起来相对容易。

• The only requirement is dry methane to help eliminate corrosion internally.

  唯一需要考虑的是如何保持沼气干燥以避免其内部腐蚀。