查询词典 heavy metal

The study on the effects of the different levels of phosphorus on heavy metal(Cu2+,Zn2+ and Cd2+) joint-biotoxicity by the phototactic behavior of Daphnia carinata.

运用水溞趋光行为的抑制试验，研究了水体中不同磷营养水平和重金属共同存在时的联合生物毒性效应。

So, a lot of fundamental research work needed to be done, including screening Daphnia, as a biomonitor, that is sensitive to toxicant but less to environment changing so as to decrease the environmental interferences for obtaining more accurate determination results; exploring the relationship between the phototactic behavior of Daphnia and pollutants such as nitrogen, phosphate, heavy metal, hormone and pesticide, especially their mixtures; studying the effect of environmental conditions such as temperature, pH and fish kairomones on the phototactic behavior of Daphnia.

口。。。口国。国里华典翩胭角嗓国但由于缺乏有效的研究方法，致使有关研究难于开展，人们不得不忽略有害物质之间的互相作用，把有害物质共同存在情况视为单一存在。因此，研究氮、磷和重金属对水搔趋光行为的影响规律，有益于认识富营养化水体和重金属污染的土壤中污染物之间的相互作用，弄清这些污染元素共存时产生的生物和环境效应，这些研究是治理土壤和水体污染之前必须解决的重大科学问题。

So, a lot of fundamental research work needed to be done, including screening Daphnia, as a biomonitor, that is sensitive to toxicant but less to environment changing so as to decrease the environmental interferences for obtaining more accurate determination results; exploring the relationship between the phototactic behavior of Daphnia and pollutantssuch as nitrogen, phosphate, heavy metal, hormone and pesticide, especially their mixtures; studying the effect of environmental conditions such as temperature, pH and fish kairomones on the phototactic behavior of Daphnia.

口。。。口国。国里华典翩胭角嗓国但由于缺乏有效的研究方法，致使有关研究难于开展，人们不得不忽略有害物质之间的互相作用，把有害物质共同存在情况视为单一存在。因此，研究氮、磷和重金属对水搔趋光行为的影响规律，有益于认识富营养化水体和重金属污染的土壤中污染物之间的相互作用，弄清这些污染元素共存时产生的生物和环境效应，这些研究是治理土壤和水体污染之前必须解决的重大科学问题。

Soils under Phyllostachys praecox stands with different cultivation histories are selected to study their content changes in chemical proprties and heavy metal elements.

为了解集约化经营雷竹栽培过程中土壤化学、生物化学性质和重金属含量的变化，分析了不同栽培历史的雷竹林土壤。

A survey on the crops grown on the restored manganese mine lands in Pingle and Lipu of Guangxi was conducted, and the heavy metal concentration s in the edible parts of the crops were analyzed.

对广西平乐、荔浦两锰矿恢复区种植的食用农作物进行了调查和重金属含量分析。

Extensive soil sampling of the crop-reclaimed Mn mine wastelands was conducted in the six typical manganese minelands (Bayi, Lipu, Pingle, Quanzhou, Bansu and Xialei) in Guangxi, China. In the six reclaimed minesoils, the heavy metal concentrations were Pb 41.63~348.31 mgkg^(-1), Cr 48.12~287.29 mgkg^(-1), Zn 47.38~269.92 mgkg^(-1), Cu 12.71~138.03 mgkg^(-1), Cd 0.73~46.50 mgkg^(-1), and Mn 676.7~41996.4 mgkg^(-1) respectively.

对广西八一、荔浦、平乐、全州、板苏和下雷6个锰矿食用农作物恢复区土壤重金属进行含量测定，结果表明，土壤各元素含量为：Pb 41.63~348.31 mgkg^(-1)、Cr 48.12~287.29 mgkg^(-1)、Zn 47.38~269.92 mgkg^(-1)、Cu 12.71~138.03 mgkg^(-1)、Cd 0.73~46.50 mgkg^(-1)、Mn 676.7~41996.4 mgkg^(-1)。

Effects of heavy metal Hg on physiological and Siochcmical lindicatios of Pistia stratiotes,were examined in a solution-culture experiment.

中文摘要：利用水培试验方法研究了Cd2+、 Cr6+、Hg2+、pb2+胁迫对穗状狐尾藻叶绿素的含量、细胞膜脂质过氧化的影响。

This technology can answer heavy metal chromium not only use at plating chamfer, still answer water natural resources use at potcher, have the double effect of economic benefits and environmental protection.

由厦门威士邦膜科技有限公司开发的电镀废水循环回用技术，日前被评定为2008年国家重点环境保护实用技术。

The basic structural parameters of pitch2based spherical activated carbon were characterized ,such as specific surface area by BET model , total pore volume , micropore and mesopore volume , sphericity , hardness and content of heavy metal ions . Its adsorption capacity to creatinine and vitamin B 12 , which are typical small and medium toxic molecules in blood , were measured. Hemolysis ratio , number of particles released , pyrexic source and germ count in a man2made kidney made of PSAC were checked .

表征了沥青基球状活性炭的基本结构参数(如比表面积、孔容量、球形度、强度、重金属含量等)，测定了其对血液中典型中、小毒性分子的吸附性能(肌酐和VB12 )和溶血反应率，分析了以沥青基球状活性炭为吸附剂的人工炭肾的微粒释放量、热源和细菌含量，并进行临床试验。

The factor analysis showed that the resuspension of mud and sand and salinity caused by river runoff and the mixture of fresh and salt water was the main reason of the variation of heavy metal content in the Huanghe estuary water.

主成分分析表明，河水流量的大小和咸淡水的混合导致的泥沙的再悬浮和盐度影响到河海混合过程及河口重金属的浓度变化趋势。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新