它不能净化水，但可以过滤掉可见沉淀物和可怕的小虫子。
Socks won't purify water, but filtering it through fabric can help remove the more visible sediment and creepy- crawlers.
首先，确定让水位上升的砖头或者马桶清洁装置没有挡到阀门，让它不能正确关闭；然后清除挡水阀座周围的矿质沉淀物，检查连在挡水阀的拉管是不是太短，有没有把挡水阀拉得有轻微缝隙。
This includes removing any mineral deposits around the seat beneath the valve. Also check that the pull chain attached to the valve is not too short and holding the valve slightly open.
动力学研究表明，在硝酸硫胺沉淀结晶过程中，初级成核是主要的成核方式，当晶浆密度较高且过饱和度很低时，二次成核不能忽视。
Primary nucleation was the main nucleation mode in the precipitation process. However, secondary nucleation cannot be ignored when the slurry density is high, and the supersaturation is low.
乳酸菌饮料常常不能保持均匀的稳定状态，易分层和沉淀。
Lactic acid fungus beverage can keep even stable state often, easy to divide into layer and precipitate.
传统的检测方法(如免疫沉淀、ELISA等)已经不能满足现代生命科学和现代医学在快速、高通量检测和分析方面的需求。
However, traditional methods, such as immunoprecipitation, ELISA, cannot meet the fast and high throughput analysis need in modern life science and medicine.
其次，不同型号的防冻液不能混合运用，以免惹起化学反响，生成沉淀或气泡，降低运用效果。
Secondly, different types of antifreeze can not be mixed use, so as not to cause chemical reactions, the formation of precipitation or bubble, reduce the use of results.
其次，不同型号的防冻液不能混合运用，以免惹起化学反响，生成沉淀或气泡，降低运用效果。
Secondly, different types of antifreeze can not be mixed use, so as not to cause chemical reactions, the formation of precipitation or bubble, reduce the use of results.
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