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Thiazolidiane-4-carboxylic acid was prepared and used as the aid catalyst that has strengthened the catalytic effect of chloroplatinic acid, greatly improved the yield of the hydrosilylation of methyldichlorosilane with allychloride, and made the yield get to 64.9%.

通过比较,选用自制的含硫化合物4-羧基-1,3-噻唑烷作助催化剂,大大增强了氯铂酸的催化活性,使甲基二氯硅烷与氯丙烯的加成反应以较高产率得到γ-氯丙基甲基二氯硅烷,产率可达64.9%。

It was reported in this paper that there were several important factors affecting hypha growth of Dictyophora, and the relationship between four strains was analysed by using antitolerance testing and peroxidase isozyme diagram techniques.

竹荪是世界上一种珍贵的食用菌,其子实体形态别具一格,风味独特,有&真菌之花,面纱女郎,林中之王&的美称,其所含氨基酸种类较一般食用菌多,尤其是谷氨酸含量占总氨墓酸的17.6肠。

We prepared a serious of functional polymers with RAFT method.First we synthesize a tri-block polymer.One end is hydrophobic PMMA and the other end is hydrophilic PtAA,the middle is the functional epoxy group,which can be fluorinate by CF_3COOH.

本文运用RAFT方法合成了一系列不同链长比例的三嵌段共聚物:聚—聚—聚(PMMA-b-PGMA-b-PtBMA),然后利用GMA中含有的环氧官能团,合成含氟的一段,最后将PtBMA一段酸解为亲水段PtAA,即形成了双亲双憎的嵌段共聚物。

These conditions included original material source, reagent ratio, base solutions, power of the microwave, reaction time and so on.2, Chitosan obtained from above was modified by Schiff base type macrocycles, which was prepared by the reaction of the reagents of salicylaldehyde, glacial acetic acid, hydrobromic acid, chloroepoxy propane and the others.

反应的最优化条件为:物料比1:25;反应时间20min;NaOH溶液浓度为50%;微波功率为450w。 2、利用原料水杨醛、氢溴酸、冰醋酸等采用四步法合成了含羟基的Schiff碱型大环化合物,然后以取代方法将此Schiff碱型大环化合物负载到壳聚糖上,得到具有特殊结构与性能的壳聚糖衍生物,并得到各中间产物的红外光谱图。

The stainless steel has the resistance air oxidation ability---Namely the rustless property, simultaneously also has in contains the acid, the alkali, in the salty medium is corrosion ability---Namely corrosion resistance.

不锈钢具有抵抗大气氧化的能力---即不锈性,同时也具有在含酸、碱、盐的介质中乃腐蚀的能力---即耐蚀性。

The stainless steel has the resistance air oxidation ability---Namely the rustless property, simultaneously also has in contains the acid, the alkali, in the salty medium is corrosion ability---Namely corrosion resistance.

具有抵抗大气氧化的能力---即不锈性,同时也具有在含酸、碱、盐的介质中乃腐蚀的能力---即耐蚀性。

In addition, the seed oil of Trichosanthes kirilowii was derivated with heterocycliczation method and then analyzed with GC/MS. The configuration of trichosanic acid is C18:39c,11t,13c, which content is confirmed to be 41.82% by peak area normalization.

由于甘三酯的组成及结构对油脂的物理性质及其在生物体中的代谢和吸收有着重要影响,通过RP-HPLC-MS法对瓜篓仁油中含瓜蒌酸的几种主要甘三酯进行进行了鉴定,并对这(来源:14ABC论f9f9文网www.abclunwen.com)几种主要甘三酯进行了分离提纯。

In this thesis, we have designed several chiral a-aminoxy acid monomers with fluorinated side chains.

本论文设计了一系列含氟侧链的a-氨氧基酸的单体进行合成,并对它们的二级结构进行研究。

New character rules are possible, such as codons vs. amino acids.

新的个性规则是可能的,像是 codons 和含氨基的酸比较。

Due to its low aroma and high acid, high production clones of pinot blanc are also used for blending with muscat in Spumante.

由于其较淡的香气和较高的含酸量,高产的白比诺在 Spumante 地区被用来与麝香品种的葡萄酒混合。

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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新

Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.

老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。