甲基

Rhodococcus erythropolis TJQ can use both organic and inorganic sulfur as vegetal sulfide. The strain growing with sodium sulfate can effectively desulfurize benzothiophene DBT and its derivatives 4,6-dimethyldibenzothiophene (4, 6-DMDBT).

实验结果表明，该菌既可以利用有机硫源又可以利用廉价的无机硫源作为生长硫源，以硫酸钠作为硫源培养的菌株可专一性脱除苯并噻吩和DBT及其甲基衍生物4，6-二甲基二苯并噻吩(4，6-DMDBT)中的硫。

Temperature-sensitive hydrogels P(NIPA-co-DiAB) with aromatic group as hydrophobe was were prepared by free radical micellar crosslinking copolymerization with N-isopropyl acrylamide, N,N-dially benzylamine as comonomers, N,N-methylene-bis-acrylamide as crosslinker, sodium dodecyl sulfate as surfactant and ammonium persulfatetetramethylethylenediamine as initiator system.

以N-异丙基丙烯酰胺、N，N-双烯丙基苄胺为共聚单体、N，N-亚甲基双丙烯酰胺为交联剂、十二烷基硫酸钠为表面活性剂、过硫酸铵-四甲基乙二胺为氧化还原引发体系，采用自由胶束交联共聚法合成了疏水基团为芳香基的疏水改性温敏性智能水凝胶P(NIPA-co-DiAB)。

Di(3,4-dimethyl)benzylidene xylitol as synthesized in the lab from 3,4-dimethyl benzaldehyde and xylitol, and a series of polypropylene samples were prepared based on the amount of the nucleating agent, DMDBX used.

以3，4-二甲基苯甲醛和木糖醇为原料合成1，3-2，4-二（3，4-二甲基）亚苄基木糖醇，将DMDBX作为成核剂使用溶液沉淀法制备DMDBX质量分数分别为0、0.1%、0.3%、0.5%、0.7%、0.9%的聚丙烯样品，采用红外光谱仪、差示扫描量热仪、X射线衍射仪和偏光显微镜等方法，研究了DMDBX对PP结晶结构和结晶性能的影响。

The observation that 2-Alkylidene or Benzylidene cyclopentanones had little anticancer activity and 2-dimethylaminomethylcyclopentanone hydro- chloride (T59) had low anticancer activity proved that the existance of α,β-unsaturated carbonyl group could enhance the anticancer activity of cyclopentanone Mannich bases.

2-亚烷基、苯亚甲基环戊酮无抗癌活性，2-二甲胺甲基环戊酮盐酸盐（T59）抗癌活性较低，这些事实说明Ⅰ类化合物中的环外不饱和双键是一个增效基团，它的存在能明显增强环戊酮Mannich碱的抗癌活性。

It isconfirmed by ~1H NMR,~(13)C NMR and X-ray crystallographic analysis that complexes 60-63are monopyridine complexes and show distorted square pyramid geometries; complexes 64and 65 are bispyridine complexes and show pseudo-octahedral geometries, where twopyridine ligands are in cis arrangement and trans to the NHC and the benzylidene ligandrespectively, the bond length between ruthenium and pyridine ligand trans to the benzylideneligand is 16 pm longer than the bond length between ruthenium and pyridine ligand trans tothe NHC ligand.

1H NMR、~(13)C NMR及X射线单晶衍射分析证明，配合物60-63是单吡啶衍生物配位的钌卡宾配合物，具有变形的四方锥构型；配合物64、65为双吡啶衍生物配位的钌卡宾配合物，具有变形的八面体构型，其中两个顺式配位的吡啶衍生物分别处于氮杂环卡宾和苯亚甲基的反位，处于苯亚甲基反位的吡啶衍生物对应的钌-氮键长要比处于氮杂环卡宾反位的长出16 pm。

To find methylated genes, researchers usually turn to a technique called bisulphite sequencing, which chemically changes normal cytosine to thymidine (T; another DNA base), while leaving methylated cytosines unchanged.

研究者通常借助于亚硫酸氢盐测序技术检测甲基化的基因，它通过化学反应使正常胞嘧啶转变为胸腺嘧啶，而对甲基化的胞嘧啶无作用。

Study on an efficient process for the preparation of trifloxystrobin starting from 2-methylacetophenone bypartial oxidation,esterification,reaction with methoxyamine,bromization and condensation with 3'- acetophenone oxime.

以邻甲基苯乙酮为原料，经过高锰酸钾的碱性氧化，甲醇酯化，再与甲氧基胺盐酸盐肟化后，用N-溴丁二酰亚胺溴化，最后和间三氟甲基苯乙酮肟缩合得到目标产物肟菌酯。

Can also be methyl red - bromocresol green mixture (from 100 said bromocresol green solution in 100 ml 95 alcohol solution, and that 200 mg of methyl red dissolved in 100 ml 95thanol solution, Mixed with 3 1), the titration end changed from light blue

亦可采用甲基红---溴甲酚绿混合剂(称取100溴甲酚绿溶液于100ml 95乙醇溶液中，再称200mg甲基红溶于100ml 95乙醇溶液中，以3 1混合)，滴定终点由品月变

Furthermore, the main volatiles rom Hippophae rhamnoides included Nonane, Octane, 3-methyl-1-Butanol, Pentanal, 2-methyl- Butanal, 2-Hexen-1-ol, 2-Hexenyl benzoate in close natural state.

在近自然状态下，壬烷、辛烷、3-甲基丁醇、戊醛、2-甲基丁醛、2-壬烯醇、2-苯甲酸叶醇酯为沙棘枝叶主要挥发物组分。

In order to study strcture-bioactivity relationship concerning α,β-unsaturated-γ-lactones, we further synthesized γ-benzyloxymethy-γ-butanolide XXIII and the corresponding unsaturated buteno- lido XXV Scheme 6, p.

为了研究该类化合物的构效关系，在本论文第三部分，我们进一步设计并合成了--γ-苄氧基甲基-γ-丁内酯XXIII和--γ-苄氧基甲基-γ-丁烯内酯XXV这两个内酯化合物，目的是想考察内酯的α，β-不饱和双键是否是产生细胞毒性的关键结构。

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？