苯甲基

Objective A procedure to analyze enantiomer profiling of methamphetamine was optimized.

目的 建立甲基苯丙胺毒品的刘映异构体分析的优化方法。

Systematic studies on the Hetero-Diels-Alder reaction between the o-Quinone methidesand different enol ether dienophiles for the construction of the spiroketal skeleton was described.

较系统地研究了邻甲基苯醌与不同的烯醇醚亲双烯体之间的Hetero-Diels-Alder反应对螺环缩酮结构的构筑及其应用。

GC/MS analysis on the leaf oil indicated that the main components with a relative content of ≥3% were alloocimene (43.22%),α-pinene (13.63%),γ-terpinene (5.49%),-3, 7-dimethyl-, 2, 6-octadien-1-ol (3.58%),β-fenchyl alcohol (4.58%), and 2-amino-3, 5-dicyano-6-(4-methoxyphenoxy)-pyridine (3.67%).

用GC/MS联用方法，对巨尾桉挥发油进行鉴定，相对百分含量在3%以上的化合物有：α-蒎烯(13.63%)、别罗勒烯(43.22%)、γ-萜品烯(5.49%)、3，7-二甲基－2，6-辛二烯醇(3.58%)、β-小茴香醇(4.58%)和2-氨基－3，5-二氰基-6-（4-甲氧基苯氧基）－吡啶(3.67%)。

Synthesis of trifluoromethylbenzene by fluorination of trichloromethylbenzene with hydrogen fluoride was investigated.

三氟甲基苯是一种重要的有机化工中间体，广泛应用于医药农药染料等领域。

The fuberidazole was prepared by reaction of O-phenylendiamine with furfural at the presence of CTMAB as catalyst.

以邻苯二胺和糠醛为原料，以十六甲基三烷基溴化铵为催化剂合成了麦穗宁。

It's a lot like Methamphetamine. People get hooked on it for a reason.

这非常像甲基苯丙胺人们因为某个理由而对它上瘾。

The study has shown:(1) With increasing sediment depth and the woody giblets, the total organic carbon, the extraction of benzene , the total humic acids and the unhydrolyte are enhanced, while the hydrolyte is decreasing.(2) According to the GC-MS analysis, n-alkane,n-alkan-2-ones and n-alkanones are composed mainly of long-chains,such a result is thought to be characteristic of a herbaceous input from 2300a.B.P. n-alkanones exist in the samples may be considered as the evidence of microorganisms activity.(3) It is showed that the lipids is more sensitive to the climate change than the floristic. The proxy of the pollen spore of the peat stratum is different from the normal environment proxy. It is one of the main reasons that the sensitivity difference of the bog vegetation reacting to the climate isn't accordant with the log of the fat molecule fossil and biology fossil.(4) The transformation of the peat organic carbon is under the influence of temperature,acidity,organic material constituting, etc, and it showed the up-trend with the depth. In the short-term scale, the conversion of the peat organic carbon is effected by seasonal water,regional climate and vegetations; while in the long-term scale, it is controlled mainly by the climate.(5) According to the comparing the orderliness of organic compound,vegetation giblets with the depth to the characteristics of the peat molecule fossil with the section, in the development of this peatmire, 1500a B.P（210cm）is regard as the borderline of the late Holocene, the keynote of the front period is warm with several cold fluctuations, and the trend of the back period is dry and cold although there were several fluctuations.

研究表明：（1）随深度的增高及植物残体中木本残体的增多，总有机碳、苯萃取物、总腐植酸、不被水解物含量逐渐增高，而易水解物含量减少；（2）GC- MS分析显示，正构烷烃，直链烷基2-酮和正烷醇均以长链组分为主，揭示了该泥炭柱剖面2347a.B.P的母源输入以草本植物为主；甲基酮类和短链正烷醇的存在是微生物活性很大的生物证据；（3）通过有机分子标志物与孢粉、植物残体等指标的对比研究表明：脂类化合物对气候变化的反映要比植物种灵敏得多，不同沼泽植物对气候变化的敏感性的差异是脂类分子化石记录与生物大化石结果很难一致的主要原因之一；（4）泥炭有机碳的转化受到温度、酸度、有机物质组成等很多因素的影响，短时间尺度，泥炭有机碳的转化受季节性降水、地方气候和植被等因素的影响；长时间尺度，泥炭地有机碳的转化，受气候条件控制；（5）总结泥炭分子化石特征、泥炭有机质各组分含量及植物残体组成随深度的变异规律，分析结果显示该泥炭地层形成过程中，1500a B.P（210cm）可作为划分前后晚全新世的界线，前期的基调是气候偏暖，但又有几次偏干冷气候的反复，后期气候以干冷为主，其间虽有几次上升波动，但整体趋势不变。

In order to reduce the corrosion of acidic paint stripper to aeronautical metals and provide with better anti-corrosion additive for AIL4130, TC4, LY12, and 20(superscript #) steel, a series of inhibitors and their composite were investigated. Weight loss experiment, Tafel curves measurement and SEM observation were carried out for the above metals in the formic acid solution which was normally used in the paint stripper. The experimental results indicate that the optimizing composite inhibitor consists of sodium benzoate, 2-thiourea, hexamethylenetetramine, sodium laurylsulfonate and 1, 2, 3-benzotriazole.

为降低酸性脱漆剂对飞机金属材料的腐蚀，以脱漆剂中经常使用的甲酸水溶液为研究介质，以AIL4130、TC4、LY12、20钢等材料为研究对象，通过腐蚀失重法、塔菲尔曲线测量和SEM观察，筛选出对以上各金属材料缓蚀效果较好的复配缓蚀剂体系，即苯甲酸钠、硫脲、六次甲基四胺、十二烷基磺酸钠、苯并三氮唑等缓蚀剂的优化组合。

Fumed-silica surfaces were modified with resorcinol and hexamethylenetetramine complex, and NR/M-silica nanocomposites were prepared in mixing and curing process. Structure and properties of NR/M-silica nanocomposites were investigated by mechanical testing ,cross-linking density determination, transmission electron microscopy, differential scanning calorimetry, fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The results showed that M-silica have obvious reinforcement effect on NR vulcanizate.

用间苯二酚与六亚甲基四胺络合物对气相法白炭黑进行表面改性，通过混炼和硫化制备了天然橡胶/改性气相法白炭黑（NR/M-silica）纳米复合材料，并通过力学性能测试、交联密度测定、透射电镜、差示扫描量热法、红外光谱和X射线光电子能谱等手段研究了纳米复合材料的结构和性能。

The additional activity of the mechanical mixture can be ascribed to the acid sites on dealuminated Y zeolite, where the activated hydrogen spilt over from the neighboring Pt sites could hydrogenate the adsorbed benzene with the formation of cyclohexane and methylcycloheptane.

发现虽然Y沸石本身没有加氢活性，但它的加入可以显著提高Pt/Al2O3的活性，因为在Pt中心上得到活化的氢可以快速溢流到邻近的沸石颗粒表面的酸中心上，并和吸附在其上的苯发生加氢反应生成环己烷和甲基环戊烷。

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？