查询词典 acid group

Lactic acid bacteria are widely distributed in the nature. The genus Lactobacillus, Lactococcus, Pediococcus and Leuconostoc are included being representatives in this group.

乳酸菌在自然界分布广泛，其中比较有代表性的菌属为乳杆菌属、乳球菌属、片球菌属和明串珠球菌属。

SCE in longevous group were semilar with aged, It is suggested that nuclear acid was keeping well repair inlongevous people.

其中先证者系长寿家谱中长寿老人和非长寿家谱的子女，共调查家庭成员121

Methods Activate groups A and C meningococcal polysaccharide with cyanogens bromide and prepare into MenAPS-ADH and MenCPS-ADH derivatives by reacting with 1, 6-adipic acid dihydrazine. Mix MenAPS-ADH and MenCPS-ADH derivatives with purified tetanus toxoid at a certain mass ratio, then add l-ethyl-3(3-dimethylaminopropyl)-carbodiimide to prepare bulks of MenAPS-TT and MenCPS-TT conjugates respectively. Mix the two bulks at a certain ratio, add stabilizer and lyophilize to prepare group A+C meningococcal polysaccharide conjugate vaccine.

A群和C群脑膜炎球菌多糖在溴化氰的活化下，以1，6己二酰肼作为连接子，与精制破伤风类毒素在碳二亚胺作用下结合，再按一定的比例将两者混合，制成A+C群脑膜炎球菌多糖结合疫苗原液，加保护剂冻干后，制成A+C群脑膜炎球菌多糖结合疫苗。

The thesis calcines process by the fact that the laboratory high temperature Stove simulates the rotary kilns producing ascent K2SO4 adds amounts H3PO4,calcination time and the kiln head calcine the temperature specifically for four kind of the mass affecting a titanium dioxide calcines a parameter mainly, take that white degree, eliminates the color force , PH value and attracts a water yield as main quality index ,adopt the homogeneous sample to follow the parameter having carried out an optimization on specially appointed composition and slanting mass metatitanic acid calcining the best calcination having tested, gaining a group of synthetical quality index.

本论文通过实验室高温炉模拟生产现场回转窑煅烧过程，针对影响钛白质量的四种主要煅烧参数K2SO4加量、H3PO4、煅烧时间和窑头煅烧温度，以白度、消色力、遮盖力和吸油量为主要质量指标，采用均匀是要法对特定组成和质量的偏钛酸进行了优化煅烧试验，获得了一组综合质量指标最好的煅烧参数。

The cognition disorder model group: the model was made by a single injection of ibotenic acid (IBA,1μL) into the Meynert nucler using microdrive injector.

认知障碍模型组：应用鹅膏蕈氨酸一次性微量(1μL)注入大鼠Meyn ert核，同时应用D 半乳糖(4 8mg/kg)皮下注射。

The method is characterized in that:(1) the reflux of the 2-[N, N- 2amino]-3-cyano-group-4-thiopheneacetic-5-carboxylic acid tetra ester is carried out in the proper sodium hydroxide aqueous solution of alcohol for 5h to 6h and the pH value is kept over 10 during hydrolysis;(2) the ethanol of 20 per cent to 60 per cent is added and then the strontium chloride aqueous solution with 2times to 2.5times molal weight is directly added, precipitates the crystal, is filtered and dried;(3) water is added to carry out the reflux and the little salt packed in the crude product is removed, and the product is collected through heat filtration.

其特征在于：①将2--3-氰基-4-羧甲基噻吩-5-羧酸四酯在适量氢氧化钠水醇溶液中回流5～6小时，水解过程保持pH值10以上；②然后再加入20-60％乙醇，随后直接加入2-2.5倍摩尔量氯化锶水溶液，析出结晶，过滤，晾干；③加水回流，除去粗品中包裹少量盐，热过滤，收集产品。

The chemical analysis result of modified lignin by alkaline-oxygen treatment is as following:The chemical analysis result of modified lignin by alkaline-oxygen treatment showed that the carboxyl group of modified lignin increased, since muconic acid type structure were generated from phenolic structure by ring-open reaction during alkaline-oxygen treatment.

氧碱处理改性木素的化学分析结果见下表；┌────┬────┬─────┬────────────────┬────┐│改性本素│OCH_3│总糖│C_9单元式│COOH │├────┼────┼─────┼────────────────┼────┤│O_4 │8.49 │0.07 │C_9H_(10.45)O_(3.7)(OCH_3)_(053)│10.82 │└────┴────┴─────┴────────────────┴────┘氧碱处理改性木素的化学分析结果表明，改性木素的羧基含量明显增加，在氧碱处理的过程中，由于芳环的开裂，(来源：ABCe6论6d文网www.abclunwen.com)形成了己二烯二酸结构，因此改性木素具有较高的反应活性，易与Al~(3+)形成络合。

The results showed that serum folic acid levels were markedly lowered in the nonremission and the relapse groups, and elevated to normaI in the remission group.

结果表明白血病人未缓解组及复发组的血清叶酸浓度均显著降低，在缓解时，则上升至正常。

The transfer of R group from XZnR occurrs from the same face as the oxygen of epoxide and results in a syn addition since organozinc reagents XZnR could act as a Lewis acid system as well as being nucleophilic in character.

我们制备一类新型有机锌试剂，研究它们在适宜的反应条件下，直接对环氧化合物进行开环反应，得到顺式开环产物，实现了有机金属试剂的立体选择性顺式开环。

Mosquitoes captured and the egg positive traps were counted and recorded every day. Results Comparing with the control group, yeast-generated CO2 could take a strong attraction to mosquitoes in the field (P.05), but had an adverse effect in laboratory. P. maximum infusion, tyre infusion and L-lactic acid dilution could not attract Aedes albopictus to oviposit in Mosq-ovitrap. The colour change of Mosq-ovitrap could not raise its attractant ability to mosquitoes, on the contrary, increase the probability of mosquito escaping from Mosq-ovitrap.

结果 实验室和现场的结果显示，酵母发酵产生的CO2在室内实验中没有增强诱蚊诱卵器的诱蚊效果，而在现场实验中却产生较好的诱蚊作用，实验组的诱蚊指数和诱蚊密度指数与对照组比较差异均有统计学意义(P.05)；大黍叶、轮胎浸出液和乳酸稀释液在试验中未显示出吸引白纹伊蚊雌蚊产卵的能力；在改变诱蚊诱卵器杯身颜色的试验中，杯身上2/3变为黑色并不能提高它的诱蚊和诱卵能力，反而增加成蚊逃逸的概率。

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。