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- Heavy mental contamination causes the decreasing of the quality of soil、degeneration of ecosystem、reduction of crops and endanger human healthy. 重金属污染使土壤质量下降,生态系统退化,农作物减产,有时候还威胁到人体的健康。
- heavy mental contamination 重金属污染
- The joint toxicity of heavy mental ions lead, zinc and cadmium to Hydra sp. was evaluated using the additive index method. 摘要以水螅为实验生物，采用相加指数法，研究了铅、镉和锌3种重金属离子复合污染物的联合毒性。
- Bacterium activity can improve or catalyze the velocity of oxidation reaction ,accelerate hydrolysis and precipitation of heavy mental ions . 铁氧化细菌的活动可以提高或催化氧化反应的速度，加速重金属的水解和沉淀。
- The content of trace element and heavy mental was measured by element-analyze r and atomic fluorescence photometer respectively. 元素分析仪测无机元素的含量；原子荧光光度计测重金属的含量。
- Results:Routine electromyography (EMG) technique was used to measure the nerve conduction velocity (NCV) and EMG examination in 30 patients exposed to heavy mental. 方法 :应用常规肌电图技术对 30例重金属接触者进行肌电图 (EMG)、神经传导速度 (NCV)检测。
- The paper analyzes minimization of nitrogen,consolidation of phosphorus,the pollution of ground water caused by nitrate,the changes of heavy mental during agricultural sludge. 分析了污泥农用过程中氮素矿化、磷的固定以及地下水硝酸盐污染、利用过程中的重金属变化情况;
- Effects of applying different quantity of urban refuse compost on soil physical and chemical properties, heavy mental accumulation and crop growth were analysed in this paper. 本文分析了不同量的城市生活垃圾堆肥(以下简称垃圾堆肥)施入农田土壤后,土壤理化性状、作物生长效应及重金属在土壤中积累等情况。
- The static capacity and the dynamic capacity of heavy mental elements for the soil in Laoshan scenic spot were calculated and the comparison to the two has been carried on. 通过计算崂山风景区土壤重金属元素的静态容量和动态容量,对二者进行了比较。
- This text related the national compulsive standard's provision, Summarize the source, the harm to human health and the test methods of the heavy mental elements in paint. 本文结合国家相关强制性标准规定,对涂料中重金属的来源、及其对人体的危害和目前对各种重金属的检测方法进行概述。
- The results show that maintainning pH from 8.5 to 9.5,stir specd from 100 r/min to 120 r/min and keeping up the quantity of flocculation from 9.0 mg/L to 10.5 mg/L can improve the rate of removal heavy mental ions. 结果表明:pH在8.;5~9
- The distribution of the heavy mental elements (HMEs) in eluvial horizons, illuvial horizons and parent material horizons of 26 agricultural soil profiles in Hainan Island was studied. 采用现场采样及室内分析测试方法,对海南岛26个农业土壤剖面淋溶层、淀积层、母质层中7种重金属元素的分布特征进行研究。
- People thought him naturally agreeable, and his senatorial peers looked upon him as not any too heavy mentally, but personally a fine man. 人家都觉得他天生是和蔼可亲的，他的参议院的同僚们，也觉得他内才并不高明，外貌却还漂亮。
- He lugged a heavy handcart along. 他使劲拉走那笨重的手推车。
- He wasn't rid of the mental burden. 他摆脱不了精神负担。
- He made manful efforts to move the heavy furniture. 他作出勇敢的努力搬动沉重的家具。
- He's suffering from severe mental disorder. 他患有严重的精神病。
- She could only croak because of her heavy cold. 她因患重感冒只能用沙哑的声音说话。
- Physical disability causes mental anguish. 生理伤残会引起心理苦闷。
- She will not shove the heavy load onto others. 她不愿意把重担推给别人。
