4, adding this agent, can greatly improve concrete workability and improve the technical performance of concrete.
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This article mainly reasearched that light alkali substituting heavy alkali and 10% silica sand ultra-fine dust were used in the float glass batch by the method of adding special cementing agent.
通过在浮法玻璃配合料中加入特殊黏结剂取代传统的配合料加水，可以将配合料中重碱换成轻碱，并可利用10%的硅质超细粉原料。
This article describes the aging reasons and phenomena of polypropylene woven sack without adding anti-aging agent.
阐述了未添加抗老化剂的聚丙烯编织袋的老化原因及现象。
This method contains steps as follows: pre-processing raw material, adding extracting agent which contains ionic liquid, centrifuging, filtering, purifying and condensing the extracting liquid.
该方法包括下列步骤：原料预处理，加入含离子液体的萃取剂，萃取液离心、过滤、纯化、浓缩即可。
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