甲

Cellulose benzoate,the degree of substitution of which was calculated from the content of C determined by element analysis,was prepared from microcrystalline celluloseand benzoyl chloride under heterogeneous condition and characterized by FT-IR and~1H-NMR.

研究了微晶纤维素和苯甲酰氯在多相条件下合成制备纤维素苯甲酸酯的反应，通过元素分析所得碳的质量百分含量计算了产物的取代度，并系统研究了吡啶与N，N-二甲基乙酰胺或与三乙胺混合反应溶剂、苯甲酰氯与纤维素羟基的摩尔比r、反应温度和反应时间对D S的影响，用FT-IR和1H-NM R对产物进行了表征。

A synthesis method of 2-(2'-hydroxyl-4'-benzoyloxy-phenyl)-2H-benzotriazole and derivatives thereof is provided, and is characterized in that 2-(2', 4'-dihydroxyphenyl)-5-X-2H-benzotriazole and benzoyl chloride are taken as raw materials for reaction in solvent for 1-8 hours under the temperature of 50-140 DEC C with the mole ratio of 1 to 0.95-1.1, wherein, the amount of the solvent is 2 to 20 times that of the 2-(2', 4'-dihydroxyphenyl)-5-X-2H-benzotriazole and X represents H, F, Cl, Br.

一种2-(2′-羟基-4′-苯甲酸基苯基)-2H-苯并三唑及其衍生物的合成方法，其特征是，以2-(2′，4′-二羟基苯基)-5-X-2H-苯并三唑和苯甲酰氯为原料，在溶剂中进行反应，反应温度50℃～140℃，反应时间1～8小时，反应原料摩尔比2-(2′，4′-二羟基苯基)-5-X-2H-苯并三唑∶苯甲酰氯为1∶0.95～1.1，溶剂用量为2-(2′，4′-二羟基苯基)-5-X-2H-苯并三唑重量的2～20倍，其中X代表H、F、Cl、Br，具有反应条件温和、反应收率高和产物纯度高的特点。

Nine sugars and five sugar alcohols were analysed by HPLC with a differenctial refractometerdetector. p-Methoxyaniline and benzoyl chloride were used to the pre-column derivatization of sugar and sugar alcohol, in which a ultraviolet absorption organic group was added, Then the derivatives were detected sensitively by an UV monitor sensitively.

采用高效液相色谱示差折光检测器，对9种糖和五种糖醇进行了分离检测；另以对甲氧基苯胺和苯甲酰氯为衍生试剂，分别对糖和糖醇进行柱前衍生，使其接上紫外吸收基团，然后用紫外检测器进行检测。

L-Phenylalanine was then obtained by alkylation of N- glycine ethyl ester with benzyl bromide in the presence of an asymmetric phase-transfer catalyst-N-benzyl-cinchonine chloride, followed by hydrolysis of the resulting product.

以甘氨酸乙酯盐酸盐和二苯甲酮为起始原料合成了N-二苯亚甲氨基乙酸乙酯，后者在手性相转移催化剂-N-苄基氯化辛可宁诱导下与烷基化试剂溴化苄发生不对称相转移催化烷基化反应，水解得到L-苯丙氨酸。

The p-tolyl benzyl ether was synthesized by reaction of p-cresol and benzyl chloride in 95% ethanol as solvent and under microwave irradiation.

以95%的乙醇为溶剂，以氯化苄和对甲苯酚为原料利用微波辐射加热合成对甲苯基苄基醚。

The experiment consist of two parts :the first one research nucleophilic addition of m-dinitrobenzene, nucleophilic reagent is benzyl cyanide; the second one synthesize 2,4-dihydorxybenzophenone from 2,4-dichlorobenzophenone and NaOH.

实验分为两部分：第一部分研究了间二硝基苯的亲核加成反应，亲核试剂为苄基腈；第二部分是用2，4-二氯二苯甲酮与氢氧化钠反应制备2，4-二羟基二苯甲酮。

We do put a lot of haste on gear. Part of that is because we don't have a huge canvas to work with. We can't put a ton of Strength and Spirit on hunter gear. Also, keep in mind that we aren't trying to make the best possible gear for you.

我们确实在锁甲上加入了很多急速属性，一部分是因为我们确实没什么别的可以加的了，我们总不能在猎人用的锁甲上加上力量和精神吧。

Risen typically wear plate or chain armor, although it is often ragged and poorly maintained.

Risen通常穿着板甲或锁甲，虽然些装甲通常都是破旧不堪而且保养不善。

This skill enables you to create plate and chain type armours.

这个技能可以让你制造出板甲和锁甲。

Craghelm's Plate and Chain.

板甲和链甲店

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。