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- Keywords Wastewater containing heavy metals;Modified natural apatite;Pelleting; 重金属废水;改性天然磷灰石;造粒;
- Modified natural apatite 改性天然磷灰石
- The modified natural rubber latex were prepared by grafting methyl methacrylate(MMA) monomer and intercalating modified montmorillonite. 采用胶乳接枝插层法制备了纳米蒙脱土改性天然胶乳,并对其性能进行了研究。
- SDJ2 fluid loss additive for oil well cementing is synthesized from water-soluble modified natural polymer HEC with suitable average molecular weight, and the properties of the grout contained SDJ2 is tested in laboratory. 选用合适平均分子量的水溶性天然高分子改性产物羟乙基纤维素(HEC)合成一种油井水泥降失水剂SDJ2,并对添加SDJ2的水泥浆的性能进行了室内评价。
- Absorption of formaldehyde by zeolite was studied,and the effect of the modified natural zeolite by sodium hydroxide,hydrochloric acid and organic compound adsorption was discussed. 对沸石吸附甲醛进行了试验研究,探讨了用氢氧化钠、盐酸及有机改性的沸石对吸附甲醛的影响。
- Keywords Heavy metal wastewater;granule;modipied natural apatite;pelleting; 重金属废水;颗粒;改性天然磷灰石;造粒;
- modified natural high molecular polymer 改性天然高分子
- This work, using cysteamine hydrochloride to modify natural clinoptilolite zeolites, results in great enhancement of absorption capacity. 为了提高沸石对汞的吸附性，利用半胱胺盐酸盐对天然斜发沸石进行改性，制得巯基改性沸石。
- Different percentage of zeolites was used to modify natural clay to study permeability, contaminants-removal ability and feasibility of leachate leaking control of zeolites modified clay-liners. 用不同比例的沸石对天然粘土进行改性,对改性粘土防渗层的渗透性、去除主要污染物的有效性和控制渗滤液渗透的可行性进行研究。
- Authors suggest a practical method based on dynamic analysis of finite element for modifying natural frequencies of hull grillage beam, and its software is completed. 摘要提出一种基于有限元结构动力分析的船体板架固有频率实用修改方法，并进行了软件设计。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- The car has been modified for racing. 这辆汽车已改装为赛车。
- The machine has been extensively modified. 这机器已被大规模地改造过。
- Therefore, a very significant challenge is to modify natural polymers to take advantage of their useful barrier properties and find ways to reduce their leakiness toward water vapor. 因此，一个非常重要的挑战是要修改天然聚合物，以利用其有益的阻隔性能，并设法减少其泄漏的水蒸汽。
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
- Events took their natural course. 事态依自然进程发展。
- She has a natural wave in her hair. 她的头发自然卷曲。
- Magnetism is a natural phenomenon. 磁力是一种自然现象。
