loamy loess

用法例句

Based on green chemistry and molecular design theory of concrete admixture, the process for the cleaner production of novel carboxylic grafted polymeric concrete slump retaining agent has been studied.

结果表明,以复合引发剂(K2S2O8+30%H2O2)替代BPO(过氧化苯甲酰)引发剂,以水替代有机溶剂,通过一釜多步串联反应,实现了混凝土保坍剂的清洁生产,彻底消除了传统反应性高分子生产工艺对环境的污染。