查询词典 humic

The result of study showed:1 The effect of some inorganic urea inhibitor enzyme indicated boracic acid inhibits the activeness of urea enzyme in soil well, delayed the speed of urea hydrolysis in the soil and decreased the volatilization of ammonia , boracic acid,can be chosen as a inorganic urea enzyme inhibitor.2 The effect of some organic urea inhibitor enzyme showed that the dissociative Humic Acids of turfy soil and weathered coal inhibit the activeness of urea enzyme in soil well.

室内模拟试验，对几种缓释氮肥的释氮研究表明，和其它几种氮肥相比，PCF和PSF的控氮时间都较长。 6。盆栽试验表明，PCF的释氮效果比其它缓释氮肥的要好，且在油菜生育的各个时期，释氮都较充足，是适合油菜的良好缓释氮肥。

The values of chemical oxygen demand of raw rain water reached to 1.91～2.21 mg/L. The removal rates induced by water purifier were 9.5%～21.8% for COD, 12.1% and 13.1% for total organic carbon and humic acid respectively.

雨水耗氧量1.91～2.21mg／L，其去除率9.5％～21.8％；总有机碳和腐殖酸的去除率分别为12.1％和13.1％。

The effect of humic acid on cherry tomato was mainly embodied in fruit flavor.

接种和施肥都能提高樱桃番茄的产量，但效果均不显著。

The humic acid content of lignite varies in a wide range of from 3.3 to 67.8%; it decreases sharply with increasing degree of coalification.

褐煤腐植酸含量变动较大，在3.3—67.8%；随着煤化程度增加，腐植酸量有明显减少的趋势。

After depolymerization of coal, its content of carbon and hydrogen decreases whereas that of chlorine,oxygen,humic acid as well as active functional group increases.

降解过程中，常常在煤分子上引入或生成新的活性基团，这些基团可大大提高煤的反应活性，为煤的进一步加工利用提供基础。

N, P and K adsorption and desorption characteristics of humic acids, which were made from the efflorescent coal at different pH values were studied in this paper.

研究了风化煤腐殖酸在不同pH值条件下对氮、磷、钾的吸附和解吸特性。

Along with the ascending of temperature,the adsorption amount was increased,the adsorption of humic acid to methyl violet was endothermal reaction.

随着温度的升高，吸附量增加，腐殖酸对甲基紫的吸附是吸热反应。

They have close relationship as the former may provide new ideas and approaches for the later, while the later may be the simulation for the former and gives it helps in degradation products identification and mechanism explanation. It is necessary to choose a suitable system, which has high potential of treating EDs and close relationship to the natural environment, to combine the researches in the two aspects. Our group has been engaged in researches on the photochemical properties and application to water pollution control of different ferric species including Fe -OH complexes, Fe -polycarboxylate complexes, Ferric oxides and Fe -humic acid complexes. Fe -oxalate complexes system has higher efficiency than the other ferric species systems in photooxidation and degradation of organic compounds. This thesis is focused on the photodegradation of nine EDs estradiol (E2), estrone (E1), 17α-ethynyl estradiol (EE2), diethylstilbestrol , bisphenol-A , 4-Nonylphenol , 4-Octylphenol , di-n-butyl phthalate , and di (2-ethylhexyl) phthalate .

因此从处理效率和环境化学意义两方面考虑，结合本课题组在不同铁形态（包括Fe-OH配合物、Fe-多羧酸配合物、Fe氧化物、Fe-腐殖酸配合物等）的光化学特性及其在水污染控制中的应用方面较系统的研究工作基础，本论文选择了四类共9种典型的内分泌干扰物（雌二醇（E2）、雌酮（E1）、17α-乙炔基雌二醇（EE2）己雌酚、双酚A、壬基酚、辛基酚、酞酸二丁酯和酞酸二乙基己基酯），研究了它们在Fe-草酸盐配合物体系中的光降解效果，推测其降解机理，探索环境内分泌干扰物光氧化处理的新体系，同时为预测其在环境中的光降解行为提供了依据。

The chemical and structural propert ies of the humic acids before and after fractionation were characterized by elem ental analyzer, Fourier transform infrared spectrometry, solid state 1 3C-nuclear magnetic resonance spectrometry (13C-NMR) and pyrolysis-gas chr omatography-mass spectrometry.

利用切面流超滤技术将Pahokee泥炭腐殖酸分为相对分子质量不同的8个级分，并综合应用元素分析和傅立叶变换红外光谱、固体13C核磁共振(13C NMR)和裂解-气相色谱-质谱技术详细研究了分级前后腐殖酸分子的结构组成特征。

Tabular and thin-tabular galena crystals were identified in the solution of tannic or humic acids.

溶解有机质、腐殖酸和单宁酸的存在对方铅矿晶面发育具有控制作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。