Other types of biogas are called digester gas, marsh gas or even swamp gas, depending on the source of origin.
其他类型的沼气被称为沼气池气，沼气等，甚至沼泽气体，这取决于该产地来源。
A lowland area, such as a marsh or swamp, that is saturated with moisture, especially when regarded as the natural habitat of wildlife.
一块浸满了水的低地，如沼泽或湿地，尤其指它被当作野生动物的自然居住区时。
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