Results show that:(1)X-ray fluorescence spectrometer is the best method to detect total concentration of heavy metals in eco-cement.
试验结果表明：（1）荧光光谱法是最优的总量测定方法；
Through experiments have found that: when the concentration of heavy metals in the soil is 0.5 percentages, it fits the half lethal dose.
通过实验发现：当土壤中重金属的含量为0.5%时，最符合蚯蚓的半数致死量。
In the research of "the environmental capacity of soil", it may furnish a parameter to the critical toxic concentration of heavy metals and non-metals in soil.
可在“土壤环境容量”的研究中，为土壤重金属、非金属的毒性临界浓度提供一个参数。
Biosorption, which USES biological materials as adsorbents, has been considered as an alternative method of wastewater treatment, especially for those with low concentration of heavy metals.
生物吸附法是处理较低浓度重金属废水的高效廉价的好方法之一。
Effects of concentration of solids in liquid manure and amount of mixed sulfur bacteria liquid inoculated on bioleaching of heavy metals from pig manure were studied.
研究了粪液固体浓度和硫细菌混合菌液接种量对猪粪中重金属生物沥浸的影响。
The change of soluble and ionic heavy metal concentration in soil solution showed that, the activity and plant availability of heavy metals was higher than that of the check.
有机络合剂使得土壤溶液中可溶性与离子态重金属的浓度改变，反映了其活性与可利用性较对照不同。
The laboratory experiments mainly included the effect of nutrient concentration on phytoplankton growth, bioaccumulation and toxicity of heavy metals and petroleum hydrocarbon (PH) to phytoplankton.
实验室实验主要研究了浮游植物生长的营养盐浓度效应，石油烃和重金属对浮游植物生长的影响等。
Acclimation with metals of low concentration was proved to be a good way to improve the microbial resistance to heavy metals.
采用低浓度金属离子驯化的方法可以有效改善重金属毒性。
Cynide Wastewater containing high concentration of 3%cynide and a variety of heavy metals is usually produced in the electro-plating and metal finishing processes.
电镀和表面处理工艺过程中常产生含氰浓度高达3％的废液，其中还含有各种重金属。
Under the condition of same polluted concentration, heavy metals in coarse sediment are released with greater amount and higher intensity dUring initial stage.
相同污染浓度条件下，粗颗粒沉积物中重金属具有较高的初期释放量和释放强度；平衡释放浓度随粒度减小略有增大。
The heavy metals concentration and distribution in different organs of tea and in soil on the both sides of National Highway 312 are studied.
研究了南京城郊3 1 2国道旁茶树不同器官中重金属含量和分布规律。
The heavy metals concentration and distribution in different organs of tea and in soil on the both sides of National Highway 312 are studied.
研究了南京城郊3 1 2国道旁茶树不同器官中重金属含量和分布规律。
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