金汇港污染特征及其来源探讨_经济学_九九论文中心 关键词：地表水； 污染特征； 污染来源 [gap=662]Key words：source water; pollution characteristics; pollution sources
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太湖典型入湖河流底泥中磷的污染特征研究_环境工程_毕业设计论文网 关键词：入湖河流 底 泥磷 污染特征 [gap=883]Key words：into-lake rivers；phosphor; sediment；pollution characteristics； 目录 8600字
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air pollution characteristics 大气污染特征
for pollution characteristics 污染特征
sediment pollution characteristics 底泥污染特性
nitrogen pollution characteristics 氮污染特征
wastewater pollution characteristics 废水污染特征
Perpendicularity pollution characteristics of organochlori 鄱阳湖区洲滩底质有机氯农药的垂直污染特征
waste water pollution characteristics 废水污染特征
Current pollution status and pollution characteristics of PM2.5 in China were reviewed and analyzed￡? including the temporal andspatial variations,source apportionment and relationship with PM10.
对中国大气中PM2.5的污染状况和污染特征进行了综述和分析,其中包括我国PM2.5质量浓度的时间、空间污染特征、来源解析以及与PM10的关系。
参考来源 - 我国PMIn this article, nitrogen pollution controll in soilless culture used biogas slurry as fertilizer was studied. Main result consists of:Nitrogen pollution characteristics in soilless culture used biogas slurry as fertilizer was studied.
本文从沼液无土栽培过程中氮污染特性着手,研究了一种有效控制氮污染的方法。
参考来源 - 沼液无土栽培氮污染控制实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The high efficiency and low pollution characteristics of high temperature air combustion were analyzed too.
分析了高温空气燃烧技术的高效低污染特性。
Research status of the existing forms, pollution characteristics, migration and transformation laws of chromium in the water environment are summarized in this paper.
综合评述了水环境中铬的存在形态、污染特征及其迁移转化规律的研究现状。
The change law, pollution characteristics and causes of formation are discussed on the basis of synthetic evaluation of water quality situation over the years in Yining city section.
在对伊犁河伊宁市段历年水质状况进行综合评价的基础上，探讨了城市河段水质的变化规律、污染特征和成因。
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