分子

The distillate stream followed by saponification and acidulation was directly to concentrate V_E by molecular distillation.

分子蒸馏馏出液经皂化、盐酸酸化、水洗干燥后作为分子蒸馏浓缩VE原料。

The reaction process in methanol solvent can be deduced from the computational results with CPCM solvent model and the supermolecular handling, namely the reaction involves four steps in the methanol solvent. The nucleophilic addition of trimethylamine to acraldehyde generates an enolate. Nucleophilic attack of the enolate on the aldehyde forms the carbon-carbon bond, followed by the proton-transfer process and the further elimination generating the product and liberating the trimethylamine catalyst.

对于CH3OH对反应体系的影响，可以综合考虑CPCM溶剂模型及超分子模型下的研究结果，即CH3OH溶剂中反应按四步进行，催化剂三甲胺首先与丙烯醛发生亲核加成，生成的两性离子中间体与甲醛发生类似于Aldol的醛醇缩合，形成碳-碳键，之后发生分子内质子转移，最后经E1cb消除得到产物，并释放催化剂三甲胺。

Investigation of the proteins interaction and their signal transduction during the process of sperm acrosome reaction is extremely essential for the further understanding of the molecular mechanism of fertilization.

研究精子顶体反应过程中相关分子作用的信号传导通路，对进一步深入了解受精的分子机制具有重要的影响。

Results It showed that there was only one 31ku band,which indicated that the fimbriae of actinomyces viscosus 5951 was composed of the same subunits of 31ku molecular weight.

结果 显示分子质量为31ku一条单一的色带，表明粘放菌5951菌毛是由相同的分子质量为31ku的亚基组成。

Of the four nucleotides that comprise DNA molecules, adenine, turns out to have a particularly high affinity for gold.

在组成DNA分子的四种核苷分子中，属腺嘌呤与金的亲合力最强。

The first change relating with removing of water and aldehyde took place at a lower temperature.

因此，在受到加热处理时，木质素磺酸钙的分子间和分子内应当会发生一些缩合反应。

Rapid alkalinization factors were polypeptide signals in the plant, belonging to a large gene family. The activity of RALF could induce extra-cellular pH increasing rapidly. Many studies on RALFs were in Solanum, including the structure and maturation, the gene expression, receptors and functions and so on.

快速碱化因子类基因属于植物多肽类信号分子，是一类大的家族基因，它的活动引起胞外pH值快速升高，有关RALF类基因的研究在几种茄科植物中开展的较多，包括RALF蛋白信号分子的结构及加工、基因表达、受体研究以及功能等方面。

The final refinement converged to R=0.0686 and 0.0688. In the two complexes, the metal atom is coordinated with one nitrogen atom of alkylamine and three sp^2 nitrogen atoms from NTB and one oxygen atom from H~2O to form a distorted trigonal-bipyramid configuration.

配合物中的金属原子与配体NTB分子中的一个烷胺氮原子、三个sp^2氮原子和一个水分子中的氧形成五配位的扭曲三角双锥构型。

The fragmentations of alkylamine ions C~nH~2~n~+~1NH~2^+ produced from 18 kinds of alkylamine salts by the electron impact ionization and protonated alkylamine C~nH~2~n~+~1NH~3^+ produced from them by the chemical ionization were examined using collision- induced dissociation.

应用碰撞诱导解离技术研究了电子轰击方法产生的脂肪胺分子离子和化学电离方法产生的质子化脂肪胺分子的碎裂反应。

The operative method was wavefront aberration-guded Lasik with Allegretto wave- light and Mona-2 keratome.

手术方法为波阵面差引导下鹰式准分子激光角膜原位磨镶术，采用WAVE-LIGHT公司的波阵面差仪和ALLEGRETTO鹰式准分子激光机，法国MORIA-2自动角膜板层刀。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。