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Water distillation method was used for extracting the volatile oil in the Aucklandia lappa Decne.
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采用水蒸气蒸馏法从木香中提取挥发油,用气相色谱-质谱联用仪对木香挥发油进行化学成分的分析。 |
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At present, the most catalysts studied for methanol synthesis are on the basis of Cu/ZnO/Al_2O_3 catalyst.
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采用添加表面活性剂两步沉淀法制备了具有高表面铜相对浓度的超细甲醇合成催化剂。 |
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5≤x≤1) powder was prepared by microwave heating in a multi mode cavity of 2.
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采用微波合成法制备单相尖晶石结构 Nix Mn3-x O4 ( 0 。 |
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Tentativea analysis trace selenium in radix puerariae and its soil property by microwave digesion-single sweep polarograph;
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采用微波消解单扫描极谱法测定了葛根及其种植土壤中微量硒的含量,并做了初步分析,为葛根产品的研发提供重要依据,也为进一步开发葛根优良品种和平衡施肥提供科学信息和依据。 |
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Microwave radiation extraction was used for extracting the volatile oil in the Aucklandia lappa decne.
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采用微波照射 -萃取法提取木香挥发性物质 ,测得木香挥发油的含量为 4。 |
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By using acupoint electric stimulation, the changes in at hletes speed-strength were observed.
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采用穴位电针刺激方法 ,观察运动员速度力量的变化状况 ,研究穴位电针刺激后运动员速度力量提高的即时效应和累积效应。 |
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The combined process of anaerobic treatment,drop-aeration bio-contact oxidation and aquatic vegetable wetland was used to treat rural domestic sewage.
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采用厌氧/跌水充氧接触氧化/水生蔬菜型人工湿地组合工艺处理农村生活污水,考察了工艺的运行效果及各处理单元对去除污染物的贡献率。 |
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The mechanism of the interactions between AMK and ct-DNA was also investigated by fluorescence spectrum,absorption spectrum,scatchard equation,circular dichroism spectrum,relative viscosity etc.
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采用荧光光谱、吸收光谱、Scatchard方程、圆二色谱、黏度等手段,对作用机理进行了研究,结果表明阿米卡星与小牛胸腺DNA之间的作用方式为混合方式,嵌入与沟槽作用是两种主要作用方式。 |
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4 ,the effect of calcium on growth and chlorophyll fluorescence of cucumber seedlings under hypoxia was studed.
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采用营养液栽培,以根际低氧耐性不同的2个黄瓜品种为试验材料,研究了Ca2+对根际低氧胁迫下黄瓜幼苗生长和叶片荧光特性的影响。 |
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The best etherification condition for dihydroArtemisinine is A2B3C4D1.
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采用正交试验法和HPLC分析技术,对蒿甲醚的制备工艺进行优选,以蒿甲醚收率和含量为考察指标,对影响双氢青蒿素醚化的因素进行研究,其醚化的最佳条件为A2B3C4D1,即甲醇与二氯甲烷的体积比为1∶2;双氢青蒿素与三氟乙酸的量之比为10∶1;反应温度为40℃;反应时间为1。 |
