乙酸的

The determination of the components in transesterification of sucrose octaacetate with ethyl oleate by HPLC was studied.

研究了高效液相色谱分析法在油酸乙酯与蔗糖八乙酸酯转酯化反应中组分定量分析上的应用。

Examples of fixatives are formaldehyde, osmium tetroxide, ethanol, and acetic acid.

像甲醛、鋨酸、酒精及乙酸等都是常用的固定剂。

The bactericidal effects of ozone and oxygen acid quite strong in formaldehyde, chlorine disinfection of higher than doubled.

臭氧的杀菌效果与氧乙酸相当，强于甲醛、杀菌力比氯高一倍。

Methods Twenty fresh pig hearts,perfusing with perchloroethylene ethyl acetate plastics filler locally,to show the stracture and the ramust of the left and right coronary artery and solid structure of the artioventricular artery sufficiently.

方法新鲜猪心20例，用过氯乙烯-乙酸乙酯填充剂灌注，制作心脏动脉铸型和局部房室结动脉铸型，充分显示左右冠状动脉及其细小分支和房室结动脉的立体构筑。

L-Phenyl-3-methyl-5-pyrazoIone was synthesized by the reaction of ethyl acetoacetate and phenyl hydrazine in ethanol.

在无水乙醇的存在下，乙酰乙酸乙酯和苯肼为原料合成标题化合物。

To enhance their photoelectric conversion efficiency, the SnO_2 powders' surface was modified by zinc acetic. The results shows that surface modification significantly improve the cell's photoelectric conversion efficiency.

为了提高其光电转化效率，用乙酸锌在SnO_2表面进行了修饰，大大改善了电池的输出性能。

Hydroxylcarveol(3) and its ester derivatives were synthesized from α-pinene(1), and their structures had been identified by IR, MS, 1H NMR and 13C NMR analysis.

以α-蒎烯(1)为原料，合成了8-羟基别二氢葛缕醇(3)及其甲酸酯(4)、乙酸酯(5)和丙酸酯(6)，并用IR、MS、1H NMR及13C NMR分析对它们的结构进行了表征。

Some new α,β-unsaturated sulfones were prepared by condensation of 4-nitrophenylsulfonylacetates with aromatic aldehydes in cyclohexane/CH_3CH_2OH in the presence of catalytic amounts of piperidine.

不饱和砜是以对硝基苯磺酰基乙酸酯为原料与芳香醛在六氢吡啶醋酸盐催化下发生缩合反应制得的。

Cryotherapy with liquid nitrogen or cryoprobe, repeatevery 1-2 weeks; or podophyllin, repeat weekly; or TCA 80-90%,repeat weekly; or surgical removal.

液氮或冷刀冷冻治疗，1-2周后重复一次，或是普达非洛每周涂一次；80-90%的三氯乙酸每周涂一次或是手术切除。

When they were in higher concentrations,they would inhibit pollen germination and tube growth.

萘乙酸对花粉萌发和花粉管生长有抑制作用，抑制程度随培养基内其浓度的增大而加强。

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。