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- ecological effect index 生态效应指数
- Ecological effect of peat and weathered coal on alkali-saline soil. 草炭与风化炭改良盐碱土的生态效应。
- Ecological effect of exotic Cd-Zn compound pollution on purple soil. 紫色土Zn、Cd复合污染生态效应研究
- The long-time ecological effect of eutrophication control measures such as damming, dredging, diluting etc. 结果表明，大部分湖区浮游植物群落结构与治理前基本相同，仍以蓝藻占绝对优势。
- The results of study indicated that four plant species all had promising ecological effect,and the ecol... 研究结果表明,4种树种的林木都具有良好的生态功能,但各树种林木的生态功能不尽相同。
- Objective To explore the potential health and ecological effect of environmental endocrine disrupting chemicals(EDCs). 摘要目的了解环境内分泌干扰物潜在的健康和生态效应。
- A simple method for calculating the standard heats of formation of organic compounds containing carboxide using the inductive effect index is built up. 利用诱导效应指数建立了一个含羰基有机化合物的标准生成热的简单计算方法。
- The hilltop ecological effect of Danxia Landform generated by the distinct physiognomy and topography was investigated. 摘要首次探讨了丹霞地貌山顶生态效应现象，揭示特殊的地貌、形态所产生的特殊生态现象。
- Urban dew is a non-negligible condensed water resource and humidity origin. To research its ecological effect is of great significance. 城市露水是一种不可忽视的凝结水资源和湿度来源,其生态效应研究具有重要意义。
- Based on the molecular polarizability effect index,a formula of three parameters was proposed to calculate the boiling point of aliphatic aldehydes and alkanones. 本文讨论了分子极化效应指数[5]与脂肪族醛酮沸点的关系,力求寻找到一个适用范围广,并且具有分子结构特征的计算脂肪族醛酮沸点的计算公式。
- The issues about urban dew and its ecological effect research were listed,and some further research trends were prospected. 另外,文章指出了城市露水及其生态效应研究存在的问题,提出了今后城市露水及其生态效应的研究方向。
- The economic effect index brought out by the education policy has become an important reference ground for the standards of the educational policy teleology. 在深刻变革时期，教育活动愈复杂，变化速度愈快，后果影响愈强。
- METHOD: Geracomia Effect Index (GEI) has been used to analyze data of death cases that are collected by Jiujiang disease inspection system from year 1992 to 1996. 方法:应用老年保健效益指数(GEI)对我市疾病监测系统1992年-1996年死亡监测资料进行分析。
- Grassland agroecosystem, as a systematic mode, provided with ecological effect and engineering systematic effect by itself. 草地农业系统作为一个系统模式,本身有其生态效应和工程系统效应。
- A.mearsii and P.yunnasensis grew the best hydrological ecological effect respectively for interception rate and stemflow. 乔木树种的生物学特征特性也有差异。
- The required ecological effect of MQL cutting fluids is indicated and some base oils and additives of ecological cutting fluids are presented in the paper. 简述了生态效应对MQL切削液的要求,给出了具有生态效应的几种切削液基油和添加剂,并对其生态性能和切削性能进行了比较。
- We now come to a page that ranks our keywords by KEI, or Keyword Effectiveness Index. 现在到了我们的队伍;一页的关键词祺、键字或效益指标.
- It was indicated N split supply has an accumulated ecological effect on the rice rhizosphere microbes activities, so does water factor on the soil microbes of rice rhizosphere. 这说明在分次施氮的施肥模式下，施氮对水稻根际土壤微生物的生态效应保持一定的持续作用，而水分条件对土壤微生物的生态效应也需要一定的时间才能起作用。
- The query optimizer in SQL Server 2005 reliably chooses the most effective index in the vast majority of cases. SQL Server 2005中的查询优化器可在大多数情况下可靠地选择最高效的索引。
- A lot of literatures and records on tablets have attested to the process and ecological effect of provided Beijing with energy during the Yuan to Qing Dynasty. 文献和碑刻资料，证实了北京能源供应的发展过程及其连带的生态效应。
