查询词典 ethyl

The breeding of saccharomycete on resist high alcohol concentration in the fermentational sweet sorghum juice;2. Study on producing fuel ethyl alcohol by sweet sorghum juice;3. As a substitute for food supplies, sweet sorghum juice with high grade has demonstrated outstanding advantage in fermentation.

利用优质甜高粱汁代替粮食进行发酵生产的优越性已经显现，在此基础上研究了面包酵母在甜高粱汁中的生长情况，测定了发酵液中酵母菌的生物量、残总糖等参数，并在10—100l的发酵罐中进行了培养优化实验。

A spectrophotometric method for the determination of raceanisodamine has been developed based on the charge transfer reaction. The reaction between raceanisodamine and Salicyl fluorone was completed in ethyl alcohol medium at 10 min at room temperature.

以消旋山莨菪碱作为电荷给体，水杨基荧光酮作为电荷受体，用分光光度法研究了它们之间形成电荷转移络合物的条件。

The antibacterial activity of acetate ethyl in the root bark of Chinese sapium was investigated.

［目的］研究乌桕根皮乙酸乙酯部位的抑菌活性。

Results The results showed that the material with the antibacterial activity in sapium root bark primarily was in the part of large polarity, but there was antibacterial activity in the material of the methanol elution with larger polarity; and the inhibitory components of the soluble material of ethyl acetate was complex and the different parts had the variable inhibition to different bacteria and in general these materials had a certain inhibition to Staphylococcus aureus and Escherichia coli.

结果］乌桕根抑菌活性物质主要存在极性较大的部分，但极性很大的甲醇洗脱部分也没有抑菌活性；乙酸乙酯可溶部抑菌成分较复杂，不同部分时不同细菌的抑制作用不同，总体来说对金黄色葡萄球菌和大肠杆菌有一定的抑制作用。

Among them, isoorientin 3''-O-glucopyranoside is a new compound, and isovitexin 6''-O-glucopyranoside, isoorientin, saponarin, loliolide, ethyl pyrophaeophorbidea, and methyl pyrophaeophorbidea are isolated from Isatis indigotica Fort.

其中1个新化合物为异荭草苷-3'' -O-吡喃葡萄糖苷(isoorientin 3''-O-glucopyranoside)，其中6个化合物为首次从菘蓝中分离得到。

Results Six compounds were isolated and identified as:5α,8α-epidioxy-(22E,24R)-ergosta-6,22-dien-3β-ol,scopoletin,isofraxidin,p-hydroxy benzaldehyde,3,4,5-trimethoxy benzoic acid,protocatechuic acid ethyl ester...

结果得到6个化合物，分别鉴定为：5α，8α表二氧(22E，24R)麦角甾6，22二烯3β醇、东莨菪素、异秦皮啶、对羟基苯甲醛、3，4，5三甲氧基苯甲酸、原儿茶酸乙酯。结论化合物Ⅰ～Ⅵ均为首次从该属植物中分离得到。

Three plasticizers were used: namely dioctyl phthalate, di n butyl phthalate and di(-2-ethyl-hexyl)sebacate.

研究中采用的增塑剂为邻苯二甲酸二辛酯、邻苯二甲酸二正丁酯和癸二酸二辛酯。

The cis-decalin 79 was obtained from 2-methoxy-4-methylphenol (77) via a sequence of reactions involving intermolecular Diels-Alder reaction of masked o-benzoquinone derived from 77 and ethyl vinyl ketone, silyl enol ether formation and Cope rearrangement.

第一部份：以2-甲氧基-4-甲基酚(77)为起始物，经由二乙醯基亚碘苯氧化、分子间Diels-Alder反应、烯醇矽醚的形成及Cope重排反应得到具有十氢萘骨架化合物79。

Based on increasing resistance of stored grain insect pest to chemicals and decreasing fumigants, the effects of ethyl formate on eggs, early larvae, late larvae, pupae and adults of Sitophilus oryzae were systematically studied with the sealed jar fumigation method under different conditions.

针对储粮害虫抗药性日趋严重、粮食熏蒸剂品种越来越少的现状，采用密闭熏蒸法，系统研究甲酸乙酯在不同条件下对米象Sitophilusoryzae卵、低龄幼虫、高龄幼虫、蛹以及成虫的致死作用。

MethodsThe ethyl acetate fractions from MeOH extracts of the spermoderm of Xanthoceras sorbifolia were partitioned and purified by means of several separation methods.

方法采用多种分离技术对文冠果种皮甲醇提取物的醋酸乙酯部位分离纯化，根据其理化性质和光谱数据进行结构鉴定。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。