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- positive chemical precipitating process 正向化学沉淀法
- Of or relating to a chemical precipitate, especially of carbonates, having the characteristics of cement. 水泥质的一种具有水泥特性的化学沉淀物的或与之相关的，尤指碳酸盐
- To remove phosphates from wastewater using biological phosphorus removal, chemic precipitation and combination of biological and chemical processes, etc. 除磷:去除废污水中磷成分,常用的方法有:生物除磷法、化学沉降除磷法、化学生物并用除磷法等。
- In this paper,HAP ultrafine powder was prepared by chemical precipitation with citric acid as dispersant. 采用沉淀法并用柠檬酸作分散剂合成HAP超细粉体。
- The process and parameters of chemical precipitation to treat phosphate coating wastewater is presented in this paper. 作者提出了用化学沉淀法处理磷化废水的工艺流程和技术参数。
- The review introduces three by chemical precipitation process,sol-gol method and reversed microemulsion method. 本文综述了化学沉淀法、溶胶-凝胶法和微乳法等三种湿化学方法在制备超细二氧化硅纳米材料方面的应用。
- The spherical zirconia and Ni-coated zirconia composite powders were synthesized by the chemical precipitation method. 摘要采用化学沉淀法分别制备球形氧化锆及镍／氧化锆复合微球粉体。
- Lanthanum zirconate(La2Zr2O7,LZ) and CeO2-La2O3-ZrO2(LCZ) composite ceramic powders were prepared by the chemical precipitation. 采用化学沉淀法制备了La2Zr2O7(LZ)和CeO2-La2O3-ZrO2(LCZ)陶瓷粉末。
- Nanometer sized lead oxide was prepared by pyrogenetic decomposition of lead carbonate synthesized by chemical precipitation. 采用均匀沉淀法合成碳酸铅,在此基础上通过高温分解制备纳米氧化铅。
- A chemically precipitated substance that binds particles of clastic rocks. 结合沉淀物使碎屑岩的微料结合起来的一种化学沉淀物
- Others, though, question whether fossil stromatolites really are the result of bacterial action, and wonder whether they might be chemical precipitates instead. 尽管另一些人，质疑层叠岩石化石是否是细菌活动的结果，但他们也想知道那些化石是否只是化学沉淀物。
- The technolgical principles of chemical precipitation,ion exchange,electrodialysis,electrolysis,etc.are presented,and their advantages and disadvanges are also discussed briefly. 介绍了化学沉淀法、离子交换法、电渗析法、电解法等工艺原理,并对其优缺点进行了简要讨论。
- The influences of tungsten-doping which was accomplished during the chemical precipitation,upon the morphology and structure of cobalt powder were studied. 研究了钨掺杂对钴粉的形貌和结构的影响,钨掺杂是在化学沉淀过程中实现的。
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- We are doing a chemical experiment. 我们正在做化学实验。
- My major is the subject of chemical engineering. 我的专业是化学工程学。
- Ammonia is a chemical substance. 氨是种化学物质。
- Such methods as the chemical precipitation and adsorption of iron,the lime softening,the activated alumina,and reverse osmosis can effectively remove the arsenic in the drinking water. 铁的化学沉淀和吸附法、石灰软化法、活性氧化铝净化法和逆流渗透法等都可以有效地去除或降低饮用水中砷的含量
- The technolgical principles of chemical precipitation, ion exchange, electrodialysis, electrolysis, etc. are presented, and their advantages and disadvanges are also discussed briefly. 介绍了化学沉淀法、离子交换法、电渗析法、电解法等工艺原理，并对其优缺点进行了简要讨论。
