Amorphous material is one of the most active part of the solid phase of soil.

无定形物质是土的固相中很活跃的一个组成部分。

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Technological conditions for solid culture of active yeast are studied.

研究了活性酵母固态培养的工艺条件。

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Technological conditions for solid culture of active yeast are studied.

研究了活性酵母固态培养的工艺条件。

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