1.
Its metallation and addition to cyclopentanone proceeded well to 40.
其金属取代物能和环戊酮顺利地反应得到40。
2.
An organic compound in which the hydrogen of the hydroxyl group of methyl alcohol is replaced by a metal.
甲基化产物一种有机合成物，是甲醇的羟基中的氢被一种金属取代
3.
Studies on Electrochemical Properties of Transition-Metal-Substituted Polyoxometalates and Electrodes Modified with the POMs
过渡金属取代杂多酸盐的溶液电化学性质及其修饰的电极的研究
4.
Study on the Synthesis and Characterization of Several Kind of Transition Metallation Phthalic Acid Suprmolecular Complexes;
几种过渡金属取代邻苯二甲酸超分子配合物的合成及表征
5.
The ceramic generator will take the place of the metallic generator.
陶瓷发动机将取代金属发动机
6.
The Optimization of Metal Co Replace Ti in IC Gate Application
金属薄膜钴在栅极取代钛的工艺优化
7.
one day the bank notes may be replaced by electronic currencies just like metal currencies were replaced by paper money.
有一天电子货币可能取代纸币，就像纸币取代金属货币一样。
8.
Homogeneous Oxidation of Polysubstituted Cyclopentadienes with Transition-metal Salts;
过渡金属盐均相氧化多取代环戊二烯反应研究
9.
Synthesis and Characterization of Axial Substituted Metal Phthalocyanine;
轴向取代金属酞菁配合物的合成和表征
10.
Syntheses and Properties of Tetra-substituted Metal Phthalocyanines;
四取代金属酞菁配合物的合成及性质研究
11.
Studies of Synthesis, Structures and Relative Reactions of Substituted Pyridine and Amidinate Complexes;
取代吡啶和脒基金属配合物的合成及结构研究
12.
Studies on the Syntheses and Structures of the Complexes of Metal ions with N- substituted Amino Acid;
氮取代氨基酸金属配合物的合成与结构研究
13.
non-ferrous extractive metallurgy
有色金属提取冶金学
14.
The refractory metals and refractory metal silicides that are used to augment or replace the polysilicon are generally deposited by physical vapor deposition processes.
用于增强和取代多晶硅的难熔金属和难熔金属硅化物通常是用物理蒸发沉积工艺沉积的。
15.
" Salt: Chemical compound formed when the hydrogen of an acid is replaced by a metal or its equivalent, such as ammonium (NH4)."
盐:酸中的氢被金属或相当金属的基团如氨(NH4)取代后所生成的化合物。
16.
abstract metal from ore
从矿砂中提取金属.
17.
As its name suggests, RACE will replace the cesium so familiar to clock makers with a different alkali element.
顾名思义，RACE将以另一种硷金属元素取代众所熟悉的铯。
18.
SYNTHESIS OF 5,15-DI(p-SUBSTITUTED PHENYL)OCTALKYL PORPHYRINS AND THEIR METAL COMPLEXES
5,15-二(对-取代苯基)八烷基卟啉及其金属配合物的合成