ch2

In the interstellar medium , CH2 plays an important role in the carbon chemistry .

反应的中间体CH2在星际空间里起着非常重要的作用。

Ch2 : I don 't want to see ( sneakers ) .

我不想去看（运动鞋）。

Ratios of the relative intensity of CH2 and CH3 were lower compared to finger nails of normal people ;

CH2和CH3的相对吸收强度比值A2848/A2872和A2918/A2956在肺癌患者指甲中要小于正常人指甲；

In addition , CH2 is thought to be an important link in the photodissociation sequence of cometary methane .

此外，CH2自由基在星际甲烷的光解过程中起到重要的链接作用。

Sedimentary Facies and Reservoir Characteristics of Ch2 & Ch6 Formation in Southeast of Jingbian Area on Ordos Basin

鄂尔多斯盆地靖边东南部长2、长6油层组沉积相与储层特征研究

Inhibition effect of several surfactants , and coordination inhibition effect of the surfactants and ( CH2 ) 6N4 in hydrochloric medium were studied .

研究了几种表面活性剂在盐酸介质中的缓蚀作用以及与六次甲基胺复配时的协同缓蚀作用。

Conclusions compared to Ch1 、 Ch3 and Ch4 , Ch2 can make a better recording of mf-VEP .

结论与Ch1、Ch3和Ch4相比，Ch2可记录到更佳的mf-VEP。

A colorless solid alcohol , CH3 ( CH2 ) 11OH , used in synthetic detergents and pharmaceuticals .

一种无色固体醇，分子式为CH3（CH2）11OH，用于制作合成洗涤剂和药物。

Belonging to or being a series of organic compounds each successive member of which differs from the preceding member by a constant increment , especially by an added CH2 group .

同系列的，同周期的属于或是一系列有机化合物的，其中每一节都比相连的前一节增加一常量，尤其是ch2组。

With the assistance of HMTA ( CH2 ) 6N4 , CuO hollow spheres assembled by nanoparticles were fabricated by hydrothermal route .

利用六次甲基四胺作配位剂辅助的水热合成方法，合成了由纳米颗粒组装而成的纳米（微米）氧化铜空心球。

Called CH2 ( for Council House Two ), this new office building for the city government was built using almost every imaginable design feature and technology that could save energy , recycle water and improve the working environment .

这座名为市府2号楼（CouncilHouseTwo）的新建筑是市政府的办公楼，它几乎使用了所有可以想象得到的设计特色和技术，以节约能源，循环用水，改善工作环境。

Although aromatic rings were not changed very much , side chains of lignin such as carbonyl groups , CH2 , syringic units and guaiacyl units were partly degraded .

对木质素的降解主要是存在于侧链上，虽然苯环骨架变化不明显，但木质素苯环间的羰基、CH2结构、紫丁香基和愈疮木基等侧链已部分被降解。

A white crystalline acid , COOH ( CH2 ) 8COOH , used in the manufacture of certain synthetic resins and fibers , various plasticizers , and polyester rubbers .

任一种白色的晶体酸，化学式为COOH（CH2）8COOH，用于生产某些合成胶、纤维多种增塑剂和聚脂橡胶。

A liquid fatty acid , CH3 ( CH2 ) 4COOH , found in animal fats and oils or synthesized and used in the manufacture of pharmaceuticals and flavorings .

一种液体脂肪酸，CH3（CH2）4COOH，发现于动物脂肪和油脂中或合成制得，用于药剂制造业和调味料。

We made some conclusions through experiment : ( 1 ) Four kinds of benzotriazole dimers linked via-CO ( CH2 ) nCO-chain were synthesized and we obtained a new single crystal .

通过实验可以得到以下结论：（1）合成了四种以-CO（CH2）nCO-连接的苯并三唑二聚体化合物，并得到了一个未见文献报道的单晶。

DEPT technique which is of great use in 13C NMR can not only enhance sensitivity of 13C signals , but also identify signals of Various atomic groups , CH3 、 CH2 and CH.

DEPT技术在~（13）cNMR研究中有重要的作用，它不仅可以增强~（13）C核磁共振信号的灵敏度，而且可以区别CH、CH2及CH3的信号。

A fatty acid , CH3 ( CH2 ) 24COOH , occurring in waxes , such as beeswax or carnauba wax .

一种脂肪酸，CH3（CH2）24COOH，发现于蜡状物如蜂蜡或巴西棕榈蜡中。

In resistant lines , the constitutive expression of CH1 and CH2 was more strong and the accumulation of CH2 and CH3 in intercellular spaces was faster than in susceptible ones .

在抗病品系中，CH1和CH2有较高的本底表达水平，且CH2和CH3在胞间积累的速度也明显快于感病品系。

The results of the character - ization show that - ( CH2 ) 3NH2 not only gets into the modified inner wall of mesoporous MCM-41 , but also makes MCM-41 remain its ordered pore structure .

结果表明：有机基团－（CH2）3NH2不仅进人孔道、修饰了MCM－41的孔壁，而且使介孔分子筛MCM－41保持了有序的孔道结构。

The aliphatic carbons in Jurassic hydrogen-rich desmocollinites have relatively high proportion of methylene carbon ( - CH2 - ) , and the proportion of aliphatic hydrocarbons in pyrolysis products are relatively high .

侏罗系富氢基质镜质体脂碳部分具有较高比例的亚甲基碳（-CH2-），热解产物中脂肪烃所占比例较高。

With the zero-intensity method proposed here , the chemical-shift difference of two protone for some CH2 groups can be accurately determined by measuring several 13C-spectra , even on a spectrometer with low magnetic field .

使用本文提出的零强度法，即使在低磁场谱仪上，也能够通过测量几个~（13）C谱以较高的精度确定出某些CH2基团两质子的化学位移之差。

In this paper , the bacterias CH1 , CH2 , CH3 and CH4 which could degrade petroleum hydrocarbons were isolated and purified from the oil-polluted soil under anaerobic and aerobic conditions .

在好氧和厌氧条件下，从油污土壤中分离纯化出4株能降解石油烃类的微生物CH1、CH2、CH3和CH4。

On Model B , there were two possible pathways , in which the hydrogen in CH4 could attach to CH2 and CH terminal groups . The corresponding activation energy was 91.37 and 79.07 kJ / mol , respectively .

在模型B上，甲烷的H原子可以分别结合到CH2端基和CH端基上，对应的活化能分别为91.37和79.07kJ/mol。

The molar ratio of the initial raw mixture was 1 GaOOH : 15 H3PO4:7.5 H2N ( CH2 ) 6NH2:0.5 C2H8N2:555 H2O .

2H2O（简称Hit-5）。反应起始原料摩尔配比为：1GaOOH：15H3PO4：7.5H2N（CH2）6NH2：0.5C2H8N2：555H2O。

The new vibrating peak of-COO-was found by FTIR on modified HA surface . It indicate that Ca2 + from HA surface and CH3 ( CH2 ) 16COO - from SA to form ionic bond .

FTIR结果表明，改性后的HA表面出现了新的-COO-的振动峰，这说明SA与HA表面的钙离子反应形成了离子键。

By using ( CH2 ) 6N4 as precipitant , a technique of preparing nano-Al2O3 powder by sel-gel method in supersonic field was studied . The products were identified by SEM , XRD , and HAS .

以六次甲基四胺为沉淀剂，研究了超声场下溶胶凝胶法制备纳米α-Al2O3粉体的工艺，对产物进行了扫描电镜分析（SEM），X射线衍射分析（XRD）及粒度分析。

The mean relative reactivity of three kinds of protons towards chlorination is R ( CH ) > R ( CH2 ) > R ( CH3 ), and the chlorine atoms are distributed homogeneously in the molecular chain .

伯、仲、叔三种氢的相对氯化活性为R（CH）>R（CH2）>R（CH3），并乒表明氯化反应比较均匀地发生在无规聚丙烯分子链上。

By observing the change in the spectra intensities and frequencies of γ CH2 rocking mode and its correlation field component γ 'CH2 . drastic effects of pre-pressure on correlation field spliting and molecular orientation in the crystal were observed .

通过γCH2面内摇摆振动模和γ′CH2相关场模的强度和频率变化，发现预压力对晶体内的相关场和分子链取向有明显的影响。

The stability of the polymer platinum complex " Si-Pt-1 " containing CHC6H4N ( CH2 ) ligand group has been investigated . It has shown that the catalyst can be reused many times without appreciable decrease in catalytic activity .

通过对含，配位基的高分子铂络合物Si-Pt-1的稳定性研究，发现它可以重复使用多次而不降低其催化活性。

Hydrocarbon like CH3 , CH2 and carbene exerted strong reactivity with the CFC-12 and its fraction , and effectively increased the decomposition pathways of low energy barrier . This confirmed the priority to select LPG as combustion fuel of CFC-12 .

LPG燃烧过程中形成的CH3、CH2等烃类自由基和卡宾与CFC-12分子及其碎片之间有很强的反应活性，有效地增加了CFC-12的低能垒分解通道，这说明了选择LPG作为燃料的优越性。