查询词典 BHC

Experimental results show that adsorption of γ-BHC in soil s has a close relation to organic matter contents and extractable aluminum, as well as pH of the soil .

试验表明，γ-六六六在土壤中的吸附率与土壤中的有机质含量、可萃取铝含量和酸性等均有密切关系。

Simulating the transfer and fate of Hexachlorocyclo- hexane in Beijing, China in recent 50 years.

1950s以来BHC在杭州环境中积累、迁移与残留动态的模拟研究。

If operate as per production regulation,qualified non-polluted agricultural products can be produced.4 The detection rate of r-BHC in the grain is 24.0%,which is within the range of standard,other BHC isomers are not detected;No BHC in vegetables;No DDT in grain and vegetables;The total detection rate of 4 types of organic phosphor pesticides is 31% in the grain and vegetables,within which the content of dichlo rovinyldimethy 1 phosphate and dimethoate is a little bit higher than the standard,but the content of Baytex and Sunithion is lower than the staneard.5 The heavy metal detection rate in the grain and vegetables are stated respectively as following:Arsenic:none,none; Chrome:8%,72.4%; Lead:6%,13%;Cadmium:none,none; Hydrargyrum :none,none.

粮食中γ一六六六的检出率为24.0％，未出现超标现象，其他六六六异构体均未测出，蔬菜中六六六未检出，粮食和蔬菜的DDT未检出；粮食和蔬菜中的四种有机磷农药总检出率为31％，其中敌敌畏、乐果出现个别超标现象，倍硫磷和杀螟松未出现超标现象。 5、重金属在粮食和蔬菜中的检出率分别是：砷：未检出、未检出，铬：8％、72.4％铅字6％、13％，镉：未检出、未检出，汞：未检出、未检出。

Since 1962 the lake was polluted by wastewater of a chemical plant which manufactured parathion, malathion, dimethaote and BHC.

以解决在氧化塘沿岸的东西排灌渠12.8公里两岸人民的灌溉水和饮用水的污染问题。

This paper studied four pretreatment methods by adding three different retention time organochlorine pesticides(α-BHC、Dieldrin、pp′-DDT) to fish sample and making different concentration(0.01、0.1、1),then using GC-ECD determinate its recoveries.

研究了用气相色谱——电子捕俘器法测定鱼肉中有机氯农药的四种不同前处理方法。通过向鱼样中加入三种不同保留时间的有机氯农药(α—六氯苯、狄氏剂、滴滴涕)，并测定三种不同浓度(0.01、0.1、1)时加标回收率。

The uptake rate and equilibrium time of organochlorine pesticides were obtained during the laboratory experiment. All the equilibrium time are 594 hours except that δ-BHC's is 234 hours and both p, p'-DDE and o, p-DDT's are 70 hours. Uptake rates of α-BHC, hexachlorobenzene,β-BHC,γ-BHC,δ-BHC, heptachlor, aldrin, heptachlor epoxide, p, p'-DDE, dieldrin, endrin, p, p'-DDD, o, p-DDT and p, p'-DDT are 0.061, 0.071, 0.098, 0.066, 0.033, 0.014, 0.007, 0.062, 0.108, 0.052, 0.029, 0.032, 0.061mL/h, respectively.

得出了有机氯农药在水相和半透膜之间分配的平衡时间和富集系数，平衡时间除δ-BHC为234h和p，p'-DDE、o，p-DDT为70h外，其余组分均为594h；α-BHC、六氯苯、β-BHC、γ-BHC、δ-BHC、七氯、艾氏剂、七氯环氧、p，p'-DDE、狄氏剂、异狄氏剂、p，p'-DDD、o，p'-DDT、p，p'-DDT富集系数分别为：0.061、0.071、0.098、0.066、0.033、0.014、0.007、0.062、0.108、0.052、0.029、0.032、0.061mL/h。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐