含酸的

The result shows that the content of pigment and filler in coatings, the ratio of epoxy resin to curing agent have important effect on film performance. Comparing with basic silicon lead chromate, the antirust capacity of zinc phosphate is higher, so zinc phosphate is an excellent active pigment at safety and antirust performance.

无毒的磷酸锌与含铅的碱式硅铬酸铅两种活性颜料的防锈性能比较，在本涂料体系中以磷酸锌为活性颜料的涂膜，其防锈性能优于以硅铬酸铅为活性颜料的涂膜。

The research finding was to provide the scientific basis in Aristolochiaceae Chinese herbal medicine quality standards.it is an important value.

应用建立的方法测定了两个厂家6批样品中马兜铃酸A的含量。本课题的研究结果可以为含马兜铃酸的中药材以及中成药质量标准的建立及技术审评提供科学依据，具有重要的应用价值。

The cytotoxic effect of α-eleostearic acid and triacylglycerols of tung oil against human tumor cells may be attributable to conjugated trienoic structure.

结果提示，除了α-桐酸的共轭三烯结构是桐油甘油三酯的细胞毒性的物质基础之外，含共轭亚麻酸的甘油三酯的分子结构对其抗肿瘤功效也有重要贡献。

The cytotoxic effects of three groups of triacylglycerols containing conjugated linolenic acid which were isolated from tung oil by NARP-HPLC on five human tumor cell lines including ECA-109, SGC-7901, Bel-7402, LS-174-T, KB, and human normal cell line L02 were investigated, and α-eleostearic acid with a purity of 96% was used as control.

以纯度为96%的α-桐酸作为对照，考察了从桐油中经NARP-HPLC分离得到的3组含共轭亚麻酸的甘油三酯对人体肿瘤细胞株ECA-109、SGC-7901、Bel-7402、LS-174-T、KB和正常细胞株L02的细胞毒性。

On the basis of molecular design and assembly, the polyoxometalate compounds supported by Keggin, Dawson, lacunary Keggin, and Silverton-type etc. polyanions on the basis of well-known and novel polyanions as building blocks were successfully synthesized by the hydrothermal technique, which are"decorated"or"bridged"by organic N-donor and/or O-donor ligands. The study on synthetic conditions and rules for these hybrid compounds and characterization by X-ray crystallography, spectroscopic, thermal, electrochemical and magnetic properties are carried out.

本文主要利用水热合成方法，从分子设计及组装的思想出发，借助不同N和含O的有机配体对多金属氧酸盐阴离子结构进行&修饰&或&桥连&，合成了一些以饱和Keggin结构、饱和Dawson结构、缺位Keggin结构和Silverton结构等阴离子为构筑模块的多金属氧酸盐化合物，研究了这些化合物的合成条件及规律并对它们的晶体结构、谱学性质、热性质以及磁性质进行了研究。

MATERIALS AND METHODS: Arg to Ser mutation was introduced into the 249 position of the p53 gene by knock-in method. These ES cells with this mutation were selected according to the homologues-recombination with PCR and Southern blot. The positive ES cells without a selection marker were injected into blastocysts recovered from Hprt(superscript -/-) mice, which were derived from Hprt-deficient ES cells. The injected blastocysts then were implanted into pseudopregnant females.

材料与方法：利用基因打靶技术在小鼠胚胎干细胞p53基因249编码子中引入点突变，使编码子249由精氨酸变成丝氨酸，然后将含突变的ES细胞显微注射到Hprt小鼠囊胚中，将注射过的囊胚植入假孕的雌性小鼠子宫，到第14d取小鼠胚胎纤维母细胞，用含HAT的培养液筛选出从ES细胞分化而成的鼠EF细胞，经测序证实细胞含有由249Arg到Ser的突变。

A copper - containing enzyme of plant and animal tissues that catalyzes the production of melanin and other pigments from tyrosine by oxidation,as in the blackening of a peel ed or sliced potato exposed to air.

酪氨酸酶动植物组织中一种含铜的酶，用氧化的方式催化，从酪氨酸中产生黑色素或其它色素，如在削皮的或削成片的土豆暴露在空气里变黑的过程

A copper - containing enzyme of plant and animal tissues that catalyzes the production of melanin and other pigments from tyrosine by oxidation,as in the blackening of a peeled or sliced potato exposed to air.

酪氨酸□动植物组织中一种含铜的□，用氧化的方式催化，从酪氨酸中产生黑色素或其它色素，如在削皮的或削成片的土豆暴露在空气里变黑的过程

Besides, n-butyl and sec-butyl tosylate that are difficult for oxidative addition can react with phenylmagnesium bromide to form corresponding cross-coupling products. Primary alkyl halide which contains β-hydrogen and is relatively hard to undergo the reaction , n-butyl chloride for instance, can react with aryl Grignard reagents in the presence of NiB alloy as well.

此外，难以进行氧化加成的对甲苯磺酸正丁酯和对甲苯磺酸仲丁酯可以与苯基溴化镁作用生成相应的交叉偶联产物；反应相对困难的含β-H的伯卤烷，如：正氯丁烷也可以在NiB催化下与芳基格氏试剂发生偶联。

In this experimental study firstly a sulphur-bearing alkanethiol-derivatised gold nanoparticles has been selected and prepared. The alkanethiol-derivatised gold was put in the mud-stone samples bearing terreau. In varies elevated temperature the gas products were collected by foam plastics in a special installation. The measurements on the contents of gold in foam plastics and on the composition of gas phase were carried out and the comparisons for various samples were made.

本项研究选取并制备了作者认为有地质意义的含硫的金的金属有机化合物-烷基硫醇衍生纳米金，将其添加至含有机物质的泥岩样品中，在专门设计的真空装置中用泡塑收集不同温度气相产物，分析所产生气相组成及带出金的含量并与添加氯金酸水溶液的样品进行对比。

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