...库 关键词]磷石膏;硫酸;复合还原剂;多元线性回归 [gap=1009]Key words: phosphogypsum; sulfuric acid;compound reducing agent;multiply linear regression ...
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Experiment results showed that compound use of efficient water-reducing admixture and retarding agent can efficiently control the pumped concrete slump loses through time.
试验结果表明，复合使用高效减水剂和缓凝剂，能有效控制混凝土坍落度经时损失。
A colorless crystalline compound, NH2OH, explosive when heated, that is used as a reducing agent and in organic synthesis.
羟胺一种无色的结晶化合物，nh2oh，加热时会爆炸，用作。
By addition of compound additives made of some cheap components, the production cost of melamine water reducing agent is greatly decreased so that the spread and application value increases.
通过掺入某些廉价组分制成复合型外加剂，使得三聚氰胺减水剂的生产成本大幅降低，从而提高其推广应用价值。
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