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本题添加时间：2023/7/16 8:18:00
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更多情况下,进料(悬浮液)需要进行预处理,以便加快过滤速度。预处理方式包括加热、重结晶或是加入过滤助剂如纤维素或硅藻土。

答案是:Oten the feed is modified in some way by pretreatment to increase the fltration rate, as by heating, recrystalizing, or adding a “filter aid" such as cellulose or diatomaceous earth.

出自 乐山师范学院专业英语 A卷  文鼎教育系统

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1、It is an introductory text, written for undergraduate students in their junior or senior years who have completed the us
2、Acid-base indicators (also known as pH indicators) are substances which change color with pH
3、Filtration is the removal of solid particles from a fluid by passing the fluid through a filtering medium, or septum, on
4、Any solution for which the concentration is precisely known is called a standard solution.
5、In a piston pump, liquid is drawn through an inlet check valve into the cylinder by the withdrawal of a piston and then


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