有些生物存在于以甲烷为第一营养级的食物链中。甲烷是从地球内部可燃气体，通常在海底渗出。
Some creatures are part of food chains that begin with methane gas which seeps from the Earth's interior in particular places, frequently at the bottom of the sea.
在此过程中，这些“生物质”——曾经农业典型的废弃物——在无氧环境中加热，直到其放出可燃气体，而得到的残渣则吸收了燃料中约50%的炭。
In this process, the "biomass" - typically waste products from farming - is heated in the absence of oxygen until it releases a flammable gas.
介绍了生物质燃气的基本燃烧特性，并按照其燃烧特性设计出一种工业用的大功率生物质燃气燃烧器。
The basic combustion characteristic of biomass gas was introduced by this article, and we designed the industrial high efficiency burnner for biomass gas according to combustion characteristic.
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