As the phosphorus resource of compound fertilizer, the free acid in TSP must be neutralized.

由于重钙的特性，用作生产复混肥的磷源，必须中和其游离酸。

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As the phosphorus resource of compound fertilizer, the free acid in TSP must be neutralized.

由于重钙的特性，用作生产复混肥的磷源，必须中和其游离酸。

youdao