查询词典 acidic

Physalis pubescens: yellow globular berries, the outside layer of dry skin, like packaging, the internal multi-containing fruit juice and seeds, sweet and tastes slightly acidic.

毛酸浆：黄色的球状浆果，外面一层干枯的皮，犹如外包装，果子内部多含汁液和种子，吃起来微酸带甜。

Structure of the dehydration product I of pinacol under acidic condition was determine The results show that the dehydration reaction of pinacol gains an advantage over rearrangement reaction.

结果表明，在酸性条件下颇哪醇的脱水反应优于重排反应，由此合成了1，2，4-三苯基环戊二烯。

Acidic peptide can improve the ability of learning and memory of mice with VD greatly and also has good effects on the plerosis of injured cerebral cells and the rehabilitation of its function.

酸性肽能显著增强VD小鼠的学习记忆能力，有利于受损脑细胞的修复和功能恢复。

The porously sintered hydroxyapatite and poly oligomer were used to prepare a series porous poly/hydroxyapatide composites as a biodegradable hard tissue repair material, and its physical-chemical properties were studied in this investigation. The used PLLA oligomer, mentioned above, was prepared via acidic hydrolytic reaction.

本研究利用烧结的方法制作多孔性的氢氧基磷灰石烧结体，加入聚乳酸及由高分子量聚乳酸降解的乳酸寡聚物制作成PLLA/HA复合材，以作为硬组织生物可吸收性修补材之用。

A very small number of double-positive cells expressed with PCNA and glial fibrillary acidic protein were first detected in infract boundary in preoptic area on day 3 and onward.

免疫组化双标显示再灌流3 d视前区有很少量的增殖性细胞核抗原/胶质纤维酸性蛋白双阳性细胞，随后增多。

In acidic solutions containing propargyl derivative inhibitors,the changes in electrochemical parameters and inhibition performance with inhibitor concentrations were investigated using electrochemical measurements.

发现在硫酸溶液中；双电层电容、电荷迁移电阻及缓蚀效率均随缓蚀剂浓度变化呈现极值行为。但是，这些参数在盐酸溶液中不存在极值行为。

As a key step of the synthesis, the Friedel-crafts acylation was researched. And the optimal operation variables were determined through orthogonal experiment: when 0.lmol acetanilide, 0.26mol aluminum chloride, 0.12mol propionyl chloride and 200ml carbon disulfide are introduced, and the reaction time is 5 hour, the yield can be up to 57.3%. The solid super acid catalyst was preliminary studied. Four solid super acid catalysts were prepared to take the place of aluminum chloride, and it was indicated that AlCl3 acidic resin can better catalyze the Friedel-Crafts reaction of acetanilide.

对合成路线中的Friedel-Crafts酰基化反应进行了研究，运用正交实验设计确定了最佳工艺条件：当乙酰苯胺用量为0.1mol时，AlCl_3用量为0.26mol、丙酰氯用量为0.12mol、溶剂用量为200ml、反应时间为5h，产率可达到57.3％；对于固体超强酸催化剂进行了初步研究，合成了四种催化剂，其中负载AlCl_3强酸性树脂对于乙酰苯胺的Friedel-Crafts酰基化具有一定的催化活性。

The gelatin-siloxane nano-particles are prepared from gelatin and 3-(2,3-epoxy propoxy )propyltrimethoxysilicane by performing chemical combination and hydrolytic reaction in acidic condition to obtain sol; and adjusting the pH value to slightly alkaline for performing polymerization reaction of silicane.

将明胶和3-(2，3-环氧丙氧)丙基三甲氧基硅烷在酸性条件进行化合、水解反应；将该溶胶的pH值调节至弱碱性，使硅烷发生聚合反应，即可得明胶-硅氧烷纳米颗粒。

Ore deposit, have been studied detailly; the orebody pattern (sedimental bedded ores combined with stringer ores of hydrothermal origin) is also outlined; four metallogenic epoches are devided; the zoning of mineralization (including zones of ores, elements, mineral assemblages and temperature of mineralization) have been depicted; the main types of wall-rock alteration are characterized as propylitization of basic rocks and pyritization-sericitization-silicification of acidic pyroclastic rocks; the origin of ores and seven kinds of main minerals have been studied; and the metamorphism and deformation of orebodies is thought mainly due to the shearing and the intrusion of subvolcanic rocks

研究了七个矿化带特别是I号矿床的矿床地质特征，描绘了矿体的双层结构(沉积矿石与热液充填交代的细网脉状矿石)，划分了四个成矿期次，区分了矿化分带(包括矿石组构的成因分带、元素分带、矿物组合分带、温度分带)，指出了围岩蚀变的主要特征是细碧岩青盘岩化而石英角斑质凝灰岩黄铁绢英岩化；对矿石及七种主要矿石矿物的成因作了研究；探讨了矿体的变质、变形，指出韧性剪切及次火山岩侵入的热力作用和应力作用是导致矿体变质变形的主要原因

In order to further improve the catalytic activity and investigate the influence of catalyst acidic properties on the catalytic activity, acid-treated montmorillonite and molecular sieve Hβwere modified by loading Lewis acid and protonic acid treatment.

为了进一步提高催化剂的催化活性和考察催化剂酸性质对催化剂活性的影响，对酸化蒙脱土和Hβ分子筛进行了改性处理并考察了它们改性后的催化活性。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。