动物解剖实验必须佩带口罩，以免发生生物污染。
During animal dissections, you need to wear masks to prevent infections.
这关系到微生物污染水平可能引起内毒素的升高。
The concern with any microbiological level is the possible increase in endotoxins that may develop.
污染会危及海洋生物。
污染正危及海洋生物。
对非生物降解物的处理是污染的主要来源。
Disposal of nonbiodegradable waste is a primary source of pollution.
PVA虽上浆性能优良，但不易生物降解，严重污染环境。
Through PVA is excellent size, it is difficult to biodegrade and pollutes environment.
选择的膜通量是膜生物反应器控制膜污染的有效手段之一。
Choice of appropriate flux is an effective way to control membrane fouling.
探讨了水污染防治及有关水生生物资源保护问题。
The problems of water pollution control are studied in this paper.
第六章生物性污染对食品安全性的影响；
Sixth chapter influence of biology pollution to food secure;
微生物处理是一种费用低，效果好，无二次污染且操作简单的处理方法。
Microorganism treatment is a method of low cost, high efficiency and pollution free.
微生物处理是一种费用低，效果好，无二次污染且操作简单的处理方法。
Microorganism treatment is a method of low cost, high efficiency and pollution free.
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