查询词典 classical groups

The paper carries on qualitative analysis to the acetone extractives before and after discoloring, shows the main components of the extractives and then takes comparison. The results shows :①The hydroxyl is oxidized and then shifted to the carbonyl,carboxyl, ester and ketone groups during inducing discoloration under the pretreatment conditions,which makes the wood color deep;② There are plenty of auxochromic groups in the acetone extractives of silver chain, the interaction between the auxochromic groups and the chromophoric groups makes the wood color deep.

摘 要：本文通过对刺槐变色前后丙酮抽出物的定性分析，得出变色前后丙酮抽出物的主要成分，进行对比分析，初步得出抽出物对诱发变色的作用为：①变色前后羟基在预处理条件下氧化成羰基，羧基，酯基和酮基等官能团，使木材颜色加深；②刺槐丙酮抽出物的主要成分中含有大量助色基，这些基团会与木素中的发色基团相互作用，使木材颜色加深。

Methods Eighty Kunming mice were equally randomized into 8 groups: normal group, model group, vitamin E 90 mgkg^(-1d^(-1) group, high-and low-dose RPM protein 20 and 5 mgkg^(-1d^(-1)respectively groups, high-and low-dose RPM anthraquinone glycoside 28 and 7 mgkg^(-1d^(-1) respectively groups, combination (low-dose RPM protein and low-dose RPM anthraquinone glycosides) group. Except the normal group, the mice in other groups received subcutaneous injection of D-galactose to indue the aging model.

选用昆明种小鼠80只，随机分为8组：正常组，模型组，维生素E组（剂量为90mgkg^(-1)d^(-1)），何首乌蛋白质高、低剂量组（剂量分别为20、5mgkg^(-1)d^(-1)），何首乌蒽醌苷高、低剂量组（剂量分别为28、7mg kg^(-1)d^(-1)），AGRPM与PRPM混合组（混合组，均取两者低剂量）；除正常组外，其他组均采用长期（7周）皮下注射D-半乳糖复制衰老小鼠模型。

Methods Eighty Kunming mice were equally randomized into 8 groups: normal group, model group, vitamin E (90mg.kg-1.d-1) group, highand lowdose RPM protein (20 and5 mg.kg-1.d-1 respectively) groups, high and lowdose RPM anthraquinone glycoside (28 and 7mg.kg-1.d-1 respectively) groups, combination (lowdose RPM protein and lowdose RPM anthraquinone glycosides)group. Except the normal group,the mice in other groups received subcutaneous injection of Dgalactose to indue the aging model.

选用昆明种小鼠80只，随机分为8组：正常组，模型组，维生素E组（剂量为90mg·kg-1·d-1），何首乌蛋白质高、低剂量组（剂量分别为20、5mg·kg-1·d-1），何首乌蒽醌苷高、低剂量组（剂量分别为28、7mg·kg-1·d-1），AGRPM与PRPM混合组（混合组，均取两者低剂量）；除正常组外，其他组均采用长期（7周）皮下注射D半乳糖复制衰老小鼠模型。

One route was that the amino-groups on the silica gel were transformed to tertiary amines by Eschweiler-clarke reaction that amine-groups react with formaldehyde and methanoic acid to prepare tertiary amines; the silica gel intermediates with tertiary amine groups reacted with chorohydrocarbons to prepare insoluble silica gel quaternary ammonium salt bactericides. Another route was that the amino-groups on the silica gel reacted with excessive chlorohexadecane; the preparing intermediates were quaternized with iodomethane to obtain insoluble silica gel quaternary ammonium salt bactericides.

一条路线是根据埃施韦勒-克拉克(Eschweiler-clarke)胺甲基化反应，进行胺基叔胺化反应，制成带有叔胺官能团的硅胶中间体，此中间体上的叔胺与卤代烷反应生成杀菌活性官能团季铵盐，制成硅胶类水不溶性季铵盐杀菌剂；另一条路线是带有胺反应活性中心的硅胶与过量正氯代十六烷反应，得到的中间体再用碘甲烷季铵化，得到最终产品——水不溶性季铵盐杀菌剂。

The products have an isoxazole mother core with 3-morpholinopyridyl substitution and possess an approxi-mately planar structure. In addition a number of ester groups, amino groups, triazole groups and oxazolidi-none groups were introduced to 5-position of the isoxazole mother core.

这些化合物均以异噁唑为母核，具有近似的平面结构，在异噁唑环的3-位引入吗啉吡啶基，而在5-位引入酯基、取代氨基、三唑环和噁唑烷酮环。

Take the experimental rats into 8 groups including 3 groups for therapeutic dose,3 groups for toxic dose and 2 groups for lethiferous dose, with 10 rats for each group and male and female for half.

本实验研究是通过动物实验来考察伊曲康唑治疗儿童头癣的安全性。

Three part of research works had been carried out in the dissertation. The first part: a kind of multidentate amine modified silica gel was synthesized through the following steps:(1) introduce the amino groups onto the surface of silica-gel by the treatment of surface silanol groups withγ-aminopropyl trimethoxy silane;(2) michael addition of excess trihydroxymethyl propyl triacrylate to amino groups on the silica gel surface;(3) amidation of the unreacted double bonds of TMPTA on the surface of TMPTA modified silica gel with diethylenetriamine;(4) the multidentate amine modified silica gel was finally obtained by the reaction of amino groups on the surface of DETA modified silica gel with double bond of butyl acrylate.

本论文进行了三部分研究工作，第一部分：通过多步反应对硅胶进行改性合成了一种多齿胺改性硅胶配体，合成过程如下：1通过γ-氨丙基三甲氧基硅烷与硅胶表面的硅羟基反应，使硅胶表面带有氨基；2利用硅胶表面氨基与过量的三羟甲基丙烷三丙烯酸酯发生Michael加成反应；3利用二乙烯三胺与TMPTA改性硅胶表面未反应的双键发生反应使硅胶表面氨基化；4最后用丙烯酸正丁酯与DETA改性硅胶表面氨基充分反应成功合多齿胺改性硅胶配体。

If the person line plastochondria surrounds DNA to include 16569 basic groups to be right, Lamda bacteriophage DNA includes 48502 basic groups to be right, the paddy rice chloroplast genome team is right including 134525 basic groups, the tobacco chloroplast genome team contains 155844 basic groups to be coordinated.

如人线粒体环DNA含有16569个碱基对，λ噬菌体DNA含有48502个碱基对，水稻叶绿体基因组含134525个碱基对，烟草叶绿体基因组含155844个碱基对等。

Methods: Young female mice of Kunming species were randomly divided into the different dosages groups, including control groups, and detecting estrogenic activity by increasing uterus weight; Young female rabbits of New Zealand were randomly divided into the different dosages groups, including control groups, detecting progestational activity by proliferation of rabbit endometrium.

昆明种雌性未成年小白鼠100只随机分为空白对照组、阳性对照组及结合雌激素低、中、高剂量组，采用小鼠子宫增重试验检测各组结合雌激素的活性；新西兰雌性未成年白兔40只随机分为空白对照组、阳性对照组及醋酸甲羟孕酮低、中、高剂量组，采用兔子宫内膜转化试验检测各组孕激素的活性。

The results of batch experiments showed that the anaerobic biodegradation kinetics of 2-CNB and 4-CNB by granular sludge were follwed by first-order reaction. The nitro groups of 2-CNB and 4-CNB were more easily attacked by electron than chlorines and they were reductively biotransformed to amino groups under anaerobic conditions. The acclimated anaerobic granular sludge, which could dechlorinate 4-chloroanline to aniline, showed that it had the ability of para-dechlorinating. The anaerobic biodegradating on pathway of 2-CNB and 4-CNB were suggested as follows:AbstractIn ZVI(zero-valent iron, Fe0)-reduction system, the nitro groups of 2-CNB and 4-CNB were reductively transformed to amino groups.

2分批试验结果证明，颗粒污泥降解2-CNB和4-CNB遵循一级动力学，在厌氧条件下，CNB发生序列的硝基还原与脱氯作用，苯环上的硝基比氯原子更容易受到亲电子攻击，发生还原反应生成氨基；所获得的颗粒污泥具有对位脱氯活性，可使4-CA进一步脱氯形成苯胺。2-CNB和4-CNB厌氧降解的建议性途径为： ZVI(Zero-valentiron)对2-CNB和4-CNB的作用主要是将苯环上的硝基还原为氨基；在ZVI与污泥共还原转化体系中，ZVI对氯代硝基苯的硝基转化具有一定的促进作用，但因ZVI对中间产物的吸附特性，终产物形成速率趋慢。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。