mull-like peat 细腐殖质状泥炭
After More burial and chemical transformation of the aging organic material, the peat becomes lignite, a very soft coal-like material.
当这些古老的有机物质经过进一步的埋藏和化学变化,泥炭就变成一种非常软的,像煤物质那样的褐煤。
The author would like to point out that the peat deposited in karst depression is the main type in Guangxi.
着重指出岩溶洼地类型是广西泥炭资源的主要矿床类型。
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