这个生物质是在一个连续的分解状态下，最后生成了一种半稳定的物质叫做腐殖质。

This biomass material is in a continuing state of decomposition, ultimately becoming that semi-stable material called humus.

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在这种堆肥化过程中，有机物由不稳定状态转化为稳定的腐殖质物质，用作肥料和改良土壤。

During the process the organic materials will be turned to the stable humus, which can be used as fertilizer and amend for the plant soil.

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