The recent three decades' developments in the research of low-molecular-weight organic acids (LMWOAs) in soil were generally reviewed.
本文为近三十年来有关土壤低分子量有机酸研究的扼要回顾。
High molecular weight organic compounds, such as humic acid derivatives, are removed from Bayer process caustic liquors by oxidation of these compounds.
超高分子量有机物,如腐殖酸衍生产品,将被删除拜尔法烧碱酒由这些化合物的氧化。
The paper also discussed that the mechanism of phosphorus mobilization from soil by low molecular weight organic acids derived from plant root under phosphorus defici…
同时,讨论了缺磷胁迫下,植物根系分泌的低分子量有机酸活化土壤磷的机理。
Effects of leaching with simulated acid rain and low molecular weight organic acids on exchangeable bases of red soil were investigated using undistributed soil columns.
采用原状土柱进行模拟淋溶实验,比较研究了模拟酸雨和几种低分子量有机酸对红壤交换性盐基的影响。
The formaldehyde could have incorporated the more lightweight organic molecules before the planetary collision, giving life's building blocks the extra weight needed to survive.
甲醛分子可能在那次毁灭性的行星撞击之前就和相对更轻质的有机分子结合了,从而给组成生命的积木足够的重量使其能够得以幸存。
The researchers started out with tiny hydrophilic glass beads in an organic solvent. Then they added just one percent weight of water.
科学家的研究从一种有机溶剂里的亲水玻璃粉开始,然后向其中添加了1%重量的水。
The charcoal works have a different weight, partly due to the black colour, but also because they have a slightly watery sheen from the protective coat of resin, and due to their simple organic forms.
木炭作品的重量不一样,一部分是由于黑色的缘故,但是也因为它们有一层保护性的树脂发出轻微的水样光辉,并且也由于它们简单的有机式样。
Any type of solid or semi solid organic material of natural or synthetic origin, generally of high molecular weight with no defined melting point. Most resins are polymers.
一类固体或半固体的天然的或合成的有机材料,一般为无清晰熔点的高分子量材料,多数树脂为聚合物。
A primary use of testing the weight percentages of nitrogen, carbon, hydrogen, oxygen and sulfur within a variety of solid or liquid explosive of pure organic compounds.
主要测试无爆炸性之各种固态或液态之纯质有机化合物中的氮、碳、氢、氧及硫之重量百分率。
Marisa realized that she needed to lose weight, she refused to the junk food and ate the organic food.
玛丽莎意识到她需要减肥,她拒绝垃圾食品,吃有机食品。
Organic nitrogen was useful for better growth of the mycelium, but inorganic nitrogen, NH4NO3 and (NH4) 2so4 was contribute to higher HA content in weight of the mycelium.
本试验条件下使用有机氮源能获得更好的菌丝体生长,但无机氮源NH4NO3和(NH4)2so4对提高菌丝体重及竹红菌素a含量有更好的贡献。
The effects of organic acid with low molecular weight on fluorine adsorption included competitive adsorption of negative ion and stimulative effect because of acid environment.
低分子有机酸对氟吸附的影响一方面表现为阴离子的竞争作用,另一方面表现为酸性条件下的促进作用。
Second, plastic photo frame: it is a kind of organic matter. Weight is very small, this can make a big photo frame, portable.
塑料相框:它是一种有机物。重量很小,这样可以做成大的相片框,方便携带。
Biogenic amines are organic bases with low molecular weight. They can be expected in all foods that contain proteins or free amino acids.
生物胺是低分子量有机碱,存在于蛋白质丰富的食品尤其是发酵食品中。
The compression of the refuse soil is due to the combined influence of the self? Weight and the organic matter degradation.
垃圾填埋体的沉降受垃圾土的自重压缩和有机质降解的综合影响。
Organic matters must be no more than 5% in weight.
有机质含量,对均质坝不大于5%。
As the important part of coal organic structures, low molecular weight compounds in coal and its effect on coal conversion features has been increasingly received interests recently.
煤中低分子化合物作为煤有机质的重要组成部分,日益受到人们的广泛关注。
The raw materials comprises (by weight) : liquid rubber 90-99.8 percent and organic modified clay 0.2-10 percent, wherein the liquid rubber is liquid carboxyl terminated polybutadiene rubber.
它的原料的重量组成包括:液体橡胶90- 99.8%,有机改性黏土0.2 - 10%,所述的液体橡胶为液体端羧基聚丁二烯橡胶。
It embodied that the content of soil organic matter increased, soil unit weight improved, and the number of soil microorganism increased.
具体表现在增加了土壤有机质含量,有利于土壤容重的改善,同时增加了土壤微生物种群和数量。
In this paper, effects of mineral elements and organic matter on garlic bulb fresh weight and allicin content in bulb were studied.
本文探讨了不同矿质元素及有机质对大蒜鳞茎鲜重及大蒜素含量的影响。
Kerogens have a high molecular weight relative to bitumen, or soluble organic matter.
相对于沥青质或可溶性有机物而言,干酪根的分子量高。
A novel YWY-typed organic phosphorus corrosion inhibitor was synthesized and researched by weight corrosion value, potentiodynamic method and SEM under the condition of bitter salt water.
研制了一种新型YWY有机膦缓蚀剂,应用重量法、电化学方法及扫描电镜等手段对合成的有机膦缓蚀剂ywy在苦咸水条件下的缓蚀性能及其缓蚀机理进行了研究。
Meanwhile, it USES the organic substance molecular weight viewpoint to analyse this new technology.
同时,用有机物分子量的观点对此工艺进行了深入分析。
The decomposition rates (weight loss rates ) of different organic materials vary within a year.
不同有机物料在一年内其分解速率(失重率)变化动态不同。
Low molecular weight amines are important raw materials for synthesis of nitrogen_containing organic compounds.
低分子量的胺是合成含氮有机化合物的重要原料。
Low molecular weight compounds of coal is generally defined as those organic compounds with MW below 500 destributing in skeleton structure of coal macromolecular material.
煤中的低分子化合物一般是指分散于煤的高分子主体结构中的分子量小于500的有机化合物。
Presented in the paper is a study of molecular weight distribution of organic matter and the removal of organic matter by using coated filter media and activated carbon in combination.
研究了改性滤料和活性炭去除有机物的分子量分布特性,以及二者结合使用时去除有机物的特性。
Soil organic matter, soil porosity, availible N, Zn, Fe, Mn and enzyme are all positively related to the amount of straw applied remarkably, while soil specific weight is negatively correlative.
土壤有机质、孔隙度、速效氮、锌、铁、锰、酶活性等理化指标与秸秆还田量呈显著正相关;
It was shown that the organic content, the specific weight of soil particle and the liquid limit decreased but the plastic limit increased with the increase of the concentration of acid.
试验表明:酸浓度的增加导致有机含量减小,土粒比重减小,塑限增大、液限减小;
It was shown that the organic content, the specific weight of soil particle and the liquid limit decreased but the plastic limit increased with the increase of the concentration of acid.
试验表明:酸浓度的增加导致有机含量减小,土粒比重减小,塑限增大、液限减小;
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