Grazing herds stimulate microbial activity in the soil, helping to capture water and separate carbon.
放牧能刺激土壤中的微生物活动，帮助水分的获取和碳的分离。
All fermentative processes are the results of microbial activity.
一切发酵过程都是微生物作用的结果。
First, the synthesis method and anti-microbial activity of bromo-sorbic acid were studied.
第一部分为溴代山梨酸的合成方法和抗菌作用研究。
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