The serum level of D-lactic acid was significantly higher in group A than in group F and C (P<0.01).

F组胃肠道食物残渣分布与C组比较无统计学意义，D乳酸水平显著低于A组（P<0.01）。

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The paper studies technological process of the high content calcium lactic acid beverage, It is based on yoghurt with live cells, adding calcium and vitamin D ect for cnhancing its functions.

本文主要研究探讨了以酸奶为基料的高钙乳酸菌饮料的配方设计、生产工艺。

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Starting from d, Llactic acid and glycolic acid, biodegradable drug delivery material poly (lactic acid-glycolic acid) (PLGA) was directly synthesized via melt polycondensation.

以d, l乳酸、乙醇酸为原料，通过熔融聚合法直接合成生物降解材料聚乳酸乙醇酸(PLGA)。

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