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major factor
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  主要因素
    Meanwhile,membrane resistance is measured:resistance of membrane module itself is 5 44×10 12 m -1 and the total resistance produced by membrane fouling is 19 88×10 12 m -1 .The value of R Z is about 3 6 times that of R m ,so it is the major factor to decrease membrane flux.
    同时对膜阻力进行了测定 ,得出实验所用超滤膜组件的自身阻力Rm 为 5 4 4× 10 1 2 m- 1 ,膜污染产生的总阻力RZ 为 19 88× 10 1 2 m- 1 ,RZ 约是Rm 的 3 6倍 ,是导致膜通量下降的主要因素
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    It was proposed that,the major factor influencing the modification was the dosage of initiator namely hydrogen peroxide. The proper dosage should be accounted for 2.5%~3.0% in weight of dry solid in the liquors.
    提出影响改性反应的主要因素是过氧化氢引发剂的用量,研究表明合适的引发剂用量为废液固体物干重的2.5%~3.0%。
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    The results show that the major factor affecting the desulfurizing capability of M/VACF is not its specific surface area and pore structure,but the kind of loaded metal.
    结果表明,M/VACF的比表面积和孔结构不是影响M/VACF脱硫性能的主要因素,负载金属的种类是影响M/VACF脱硫性能的主要因素
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    Pyrolysis temperature is major factor effecting on H2S, NH3, HCN release.
    热解温度是影响二次污染物排放的主要因素
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    With the effective control of industrial and residential point source pollution, non-point source pollution has been the major factor of water pollution.
    随着工业和生活污染源等点源污染的有效控制,面源污染日益成为水体污染的主要因素
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  “major factor”译为未确定词的双语例句
    Land degradation (LD) has become the major factor affecting and constraining the socio-economic development and environmental rehabilitation and conservation in the northwestern region (NWR) of China.
    土地退化已成为我国西北地区社会经济发展和生态环境保护的制约因素。
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    The optimal pH, which was the major factor influencing the adsorption ofthe metals, was around 6.4;
    对于所实验的藻种,最佳吸附温度约为40℃,最佳吸附pH值在6.4左右。
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    The SO2 concentration was the major factor to the injury degrees of crops;
    SO2 浓度对作物的伤害程度起主要作用。
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    The air temperature mainly influences the diffusion and convection processes of soil CO_2 and is not a major factor changing the soil CO_2 concentration on the diurnal scale.
    气温主要影响土壤CO2向大气的扩散和对流过程,而不是昼夜尺度上影响土壤CO2体积分数变化的主要环境因素。
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    , and is a major factor is shortcut nitrification - denitrification. The study shows that the iron ion concentration has an direct influence on coupling nitrification-denitrification reaction progress.
    通过对耦合脱氮系统的影响因素的研究,发现了耦合硝化系统中pH值和DO浓度的变化规律,并就pH和DO对耦合短程脱氮的影响得出了新的结论。
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  major factor
The structure of the compounds was a major factor determining the degree of sorption.
      
Endogenous inhibitors of angiogenesis are proved to be a major factor preventing the emergence of clinically manifested stages of human cancer.
      
It was concluded that the molecular mobility is the major factor determining the electron transport properties of the systems of interest.
      
As a rule, complexonates are much more effective them the corresponding acids; if the complexing agent is fixed, then the stability constants (Ks) of the complexes become the major factor.
      
The French-Russian cooperation in radiochemistry actively develops today and is a major factor in the progress of this science and nuclear industry in these two countries.
      
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In this paper a thermodynamic model of adsorption of cadmium on activated carbons is deduced on the basis of statistic thermodynamics, and according to a mathmatic analytic model being established for a "Cadmium-cyanides-oxides" Solution system, chemical compositions of cadmium cyanide wastewaters are calculated through the use of computer under different pH conditions. Also the paper discusses major factors effecting the adsorption and provides experimental parameters for designing medium-size test model....

In this paper a thermodynamic model of adsorption of cadmium on activated carbons is deduced on the basis of statistic thermodynamics, and according to a mathmatic analytic model being established for a "Cadmium-cyanides-oxides" Solution system, chemical compositions of cadmium cyanide wastewaters are calculated through the use of computer under different pH conditions. Also the paper discusses major factors effecting the adsorption and provides experimental parameters for designing medium-size test model.

本文运用统计热力学的方法,推导出活性炭吸附镉的热力学公式;通过建立确定“镉—氰化物—氢氧化物”溶液系统化学组成的数学分析模型,利用电子计算机求出不同pH值下氰化镀镉废水的化学组成;研究影响吸附的主要因素,提出了设计参数。

As to their activity to eliminate iron impurities in Al_2(SO_4)_3, both humic and N-humic acids are fairly good agents owing to their adsorptive selectivity. The article deals with the major factors which influence the iron-eliminating power of humic and N-humic acidsfound in raw coal from Lingshi County, Shanxi Province and proposes that some conditions may prove to be proper for ironelimination. A discussion on the reaction mechanism of humic acids with Fe and Al is included: the reaction of Fe with...

As to their activity to eliminate iron impurities in Al_2(SO_4)_3, both humic and N-humic acids are fairly good agents owing to their adsorptive selectivity. The article deals with the major factors which influence the iron-eliminating power of humic and N-humic acidsfound in raw coal from Lingshi County, Shanxi Province and proposes that some conditions may prove to be proper for ironelimination. A discussion on the reaction mechanism of humic acids with Fe and Al is included: the reaction of Fe with humic acids is mainly a chemical adsorption while that of Al a physical one. The adsorptive capacity of humic acid for both elements is determined by the kind of the functional group of the acid and the amount of humic acid present in the raw coal. The adsorbent is readily reactivated for recirculation. This constitutes a promising approach for the elimination of Fe impurities in the processing of Al_2(SO_4)_3.

HA及NHA对浓铝溶液中的铁有较好的选择吸附性能,可用于脱除硫酸铝中的铁。本文考查了影响山西灵石HA及NHA脱铁的主要因素,提出了适宜的脱铁条件;讨论了HA与Fe、Al的作用机理。铁主要是化学吸附,铝主要是物理吸附,吸附容量与HA酸性功能团及腐植酸含量有关。NHA吸附性能优于对应的原煤HA。吸附剂易于再生使用,是硫酸铝生产中一条有希望的脱铁途径。

The authors describe the progress made in theoretical research on function of static electricity and influnce exerted by physical properties of chemical liquid on its effect during spraying, and introduce the electrostatic spraying laboratory for this purpose established, its pro-totypic instrumentation and rather satisfactory data-processing system. The data of whole-year electrostatic spraying tests are stored on magnetic disc. By data processing on the computer major factors and subordinate conditions...

The authors describe the progress made in theoretical research on function of static electricity and influnce exerted by physical properties of chemical liquid on its effect during spraying, and introduce the electrostatic spraying laboratory for this purpose established, its pro-totypic instrumentation and rather satisfactory data-processing system. The data of whole-year electrostatic spraying tests are stored on magnetic disc. By data processing on the computer major factors and subordinate conditions are found which remarkably influence liquid atomization and charging performance. Air sampling technique is used to explore safety evaluation. Fianlly the authors briefly present newly-developed portable electrostatic ultra-low-volume sprayer.

本文阐述了在喷雾过程中静电的作用以及药液物理特性对效果的影响的理论研究中所取得的进展,并介绍了所建立的静电喷雾实验室及其研制的试验装备和较完善的数据处理系统。将全年的静电喷雾试验数据存入磁盘;经计算机分析,找到了对液体雾化和充电性能有较大影响的主要因素和次要条件。在安全性测定方面,运用了空气采样技术进行探索。最后,对新研制的手持式静电微量喷雾器作了简介。

 
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