;The reaction mechanism of purifying WPA by ethylalcohol as organic solvent is sought.
探讨以乙醇为有机溶剂
化湿法磷
过程中的反应机理。
,
化,精炼化剂；提
剂The reaction mechanism of purifying WPA by ethylalcohol as organic solvent is sought.
探讨以乙醇为有机溶剂化湿法磷过程中的反应机理。
low-tech water-purifying and solar-heating systems.
低技术的水和太阳能加热系统。
Regenerationprocess of deteriorated chloroplatinic acid by reducing and purifying is introduced.
介绍了变质氯铂经过还
、提，再生为分析氯铂的中间操作过程。
Modified calcium aluminate as a purifying agent, with two functions both of coagulability and desaltification, can be produced from industrial waste slag from alumina plant.
利用氧化铝厂工业废渣生产的改性铝钙水剂兼有混凝和脱盐两种功能。
Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.
但对恒频蝙蝠而言，视觉退化的
因在于它具有一种更发达的回声定位能力。
This paper analyzes the purifying and processing method of superabundance mother liquid in the production process of chloroactic acid.
对氯乙生产过程中得到母液的提及提后残液加工处理方法进行了较详细的分析介绍。
- Planting some aquaplants such as aloe and eelgrass in the built marsh land and use its denitrification and phosphorus removal function to strengthen the purifying of Suzhou river water by its.
·在人工湿地内种植芦苇、苦草等水生植物，利用其能有 效脱氮除磷的功能，强化苏州河水的化效果；
On the basis of giving the principles of purifying rare earth metals by floating zoneelectrotransport jonit method, the mechanisms of this purification method were analyzed.
在概述悬浮区熔电迁移联合法提稀土金属的理基础上,着重分析了这种方法提稀土金属的机理。
It is concluded that the efficiency of purifying water quality and conserving water resource can be enhanced through planting hydrophytic aquatic vegetation in wetlands.
从数据统计结果来看，应善用水生植群截留功能，藉由设计植群排列及规划植群佔地面积，以达到化水质、涵养水源之功效。
Etodolac was synthesized with 7-ethyltryptophol and methyl 3-oxopentanoate as the starting materials.Highly pure etodolac was obtained by purifying the crude product with a mixing solvent.
以7-乙基色醇和3-氧代戊甲酯为起始料,以甲醇为溶剂,合成了依托度.采用混合溶剂对粗品进行精制,得到了高度的依托度.
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