甲基

The company with high technical content, product quality, its products -methyl naphthalene,-methyl naphthalene, acenaphthene industry, quality of wash oil, residual oil, etc., the main focus on the supply in Shanxi, Henan, Shandong and other places.

该公司技术含量高，产品质量可靠，其生产的产品α－甲基萘、β－甲基萘、工业苊、中质洗油、残油等，主要集中供应于山西、河南、山东等地。

E-cadherin methylation may play an important role in the carcinogenesis of colon carcinoma cells and can re-express after the treatment with 5-Aza-CdR.

E-cadherin基因启动子区异常甲基化是结肠癌发生、发展的重要机制之一，5-Aza-CdR能使甲基化的E-cadherin去甲基化修饰并重新表达。

Theoretically, re-expression of tumor suppressor genes by demethylating agents may contribute to inhibiting the development of tumor. It has been suggested that DNA hypermethylation results in resistance to chemotherapy and consequently reduces the efficacy of chemotherapeutic treatment.

由于高度甲基化而暂停表达的抑癌基因，如果能应用去甲基化制剂逆转甲基化的异常状态，使之重获表达，理论上即可发挥其抑制肿瘤细胞生长的功能。

The effects of pyridine substitutive derivations on the metabolic pathway of Blakeslea Trispora, were studied such as 2,6-dimethylpyridine,2,5-dimethylpyridine, 2-amino-6-methylpyridine and tobacco dust which contains mainly 3-pyridine substitutive derivation.

主要考察了吡啶衍生物如2，6-二甲基吡啶、2，5-二甲基吡啶、2-氨基-6-甲基吡啶及烟草废弃物（主要成分为3-吡啶基衍生物）对三孢布拉氏霉菌代谢途径的影响。

Polyurethane-acrylics hybrid latexes were prepared using isophorone diisocyanate, dimethylol propanoic acid and polypropylene oxides of different molecular weights as main materials for PU component, and butyl acrylate, methyl methacrylate and a crosslinker, trihydroxymethyl propanetriacrylate as main acrylic monomers. Hydroxyethyl acrylate was used as the coupling agent between PU and AC.

以异佛尔酮二异氰酸酯、二羟甲基丙酸和聚丙醚二醇等为聚氨酯原料，丙烯酸丁酯、甲基丙烯酸甲酯、三羟甲基丙烷三丙烯酸酯为丙烯酸酯类单体，丙烯酸羟乙酯为聚氨酯和聚丙烯酸酯间的偶联剂合成了丙烯酸酯改性水性聚氨酯乳液。

Finally, N ethey[3,3 dimethyl spiralindoline naphthoxazine]was synthesized by the addition of 1 nitroso 2 naphthol also,the photochromic mechanism of the substance and its photochromic phenomenon in ethanol were studied.

报道了以苯肼和 3 甲基 2 丁酮为原料首先合成 2 ，3 ，3 三甲基吲哚，吲哚再与碘乙烷亲核取代，碱化得费舍尔碱，最后与 1 亚硝基 2 萘酚作用合成N 乙基 [3 ，3 二甲基螺吲哚啉萘并恶嗪 ]的全过程，并研究了该物质的变色机理以及在乙醇溶剂中的光致变色现

The experiment result showed that the photocatalytic degradation reaction was high efficiency for lower concentration of methyl orange solution.

利用该系统分别对低浓度甲基橙溶液进行了间歇式和连续式操作下光催化降解的实验研究，以甲基橙溶液的脱色率和TOC降解率为指标，探讨了降解过程中反应液初始浓度、气体流量、液体流量、光催化剂用量等操作条件对降解性能的影响，并对高浓度甲基橙溶液的降解过程进行了初步研究。

No single substance can completely replace methyl bromide at present. The current situation and application of alternatives in abroad and domestic were summarized.

由于用于土壤消毒的甲基溴会有30％～85％的总用量进入大气，而甲基溴又是一种消耗臭氧层物质，因此在1992年哥本哈根会议上，甲基溴被列为受控制物质。

Using N,N′-dimethy-p-toluidineas the catalyst,bisphenol A-glycidyl methacrylate,the resin matrix in most dental composite restorative materials,was synthesized by the reaction of bisphenol A and glycidyl methacrylate,and characterized by FTIR,~1HNMR and M S.

以N，N-二甲基对甲苯胺为催化剂，双酚A和甲基丙烯酸缩水甘油酯为原料合成了一种常用的口腔修复材料树脂基质———双酚A双甲基丙烯酸缩水甘油酯，并用FTIR1、HNMR和质谱对其结构进行表征。

Krogan N J, Kim M, Tong A, et al Methylation of histone H3 by Set2 in Saccharomyces cerevisiae is linked to transcriptional elongation by RNA polymerase ||. Mol Cell Biol, 2003, 12(2):476-487[12] J Biol Chem.

表达基因转录起始下游的局限性H3-K9的三甲基化不在启动子高甲基化的区域，H3-K9的三甲基化耦合于RNA聚和酶II在沉默基因中具有一致性。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？