查询词典 ethanol

The paper dealted with effect of ethanol extract from the root bark of Tripterygium wilfordii on bioactivities of diamond-back moth, Euproctis bipunctapex .

研究雷公藤乙醇提取物对乌桕毒蛾的生物活性，结果表明，雷公藤提取物对4龄乌桕毒蛾幼虫具有很强的生长发育抑制作用，其抑制中浓度EC50为

A review on the researches about co-enzyme NADH model compounds was given in the first part of this thesis. In the second part, some new synthetically useful reactions employing Hantzsch ester were discussed which are summarized as following (Scheme 1):Scheme 11 The selective reduction of the exocyclic double bond of the 4-arylmethylene- and 4-alkylidene-4H-isoxazol-5-ones and 4-arylmethylene-4H- pyrazol- 5-ones was achieved by using Hantzsch 1, 4-dihydropyridine as the reducing agent in ethanol.

论文包括两个部分：我们在第一部分对辅酶NADH模型化合物的研究作了综述，第二部分是反应研究，分为四章，我们发现和发展了辅酶NADH模型化合物—汉斯酯参与的几个具有合成价值的新反应和体系。

The VLE of ethanol-ethyl acetate and acetonitrile-toluene systems was investigated experimently and the result indicates that experimental result agrees well with that of molecular design.

针对两组物系的分子设计结果进行了汽液平衡实验，结果表明：实验结果与分子设计结果基本一致，设计过程有效。

Before the processes of ethanol fermentation, polysaccharides should be firstly hydrolyzed to fermentable sugar by...

生物酒精作为石油的替代物，其产业链还在继续延伸。

The key issue for the industrialization of cellulosic ethanol is the conversion of lignocellulosic feedstocks into fermentable sugars.

纤维素水解转化为可发酵糖工艺是纤维素乙醇炼制过程中至关重要的环节。

Before the processes of ethanol fermentation, polysaccharides should be firstly hydrolyzed to fermentable sugar by enzymes.

生物酒精作为石油的替代物，其产业链还在继续延伸。

Dr Wayne Fish, who led the team, found that 50 per cent of the fruit was fermentable into ethanol which could provide valuable fuel.

研究小组负责人韦恩·费什发现，50%的西瓜可发酵产生乙醇这种宝贵的燃料。

A SPE procedure was suggested for extracting and concentrating fisetin by using different volume fractions of ethanol in aqueous solution as the loading conditions.

分别以中药黄栌的主要成分非瑟酮为印迹分子、丙烯酰胺为功能单体及乙二醇二甲基丙烯酸酯为交联剂，通过封管聚合法合成了分子印迹聚合物；将其装于自制的固相萃取柱中，研究了以不同体积比的乙醇-水溶液为溶剂时非瑟酮在柱上的保留行为；通过优化清洗及洗脱条件，使非瑟酮与它的结构相似物槲皮素在柱上得到了很好的分离。

The fatty acid synthetase inhibitor is extracted from fleeceflower vine with polar organic solvent and/or water, preferably 40-60 % concentration ethanol solution.

本发明的脂肪酸合成酶抑制剂是用有机溶剂或水或有机溶剂与水的混合物，从中药首乌藤中萃取出的物质。所述的有机溶剂为极性有机溶剂，其中，优选的是乙醇，最优选的是20％-70％的乙醇，更优选的是40％-60％的乙醇。

The model solvents included ethanol,acetone,ethyl acetate and tetrachloromethane.And 1-hexyl-3-methylimidazolium bromide and 1-hexyl-3-methylimidazolium fluoroborate were used as the model RTIL.

结果表明，两种离子液体吸收乙醇或丙酮后，它们的电导率和介电常数显著增加，而四氯化碳对两种液体的电学阻抗特性影响较小。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。