查询词典 metathesis

Metathesis, the technique for which Dr Chauvin, Dr Grubbs and Dr Schrock will receive their prizes, is a form of chemical sleight of hand that allows groups of atoms to be moved efficiently from one molecule to another.

复分解是一种化学技术，能使原子团有效地从一个分子转移到另一个分子。伊夫－肖万、罗伯特－格拉布和理查德－施罗克博士将因此项技术而获奖。

Metathesis, the technique for which Dr Chauvin, Dr Grubbs and Dr Schrock will receive theirss prizes, is a form of chemical sleight of hand those allows assembles of atoms to be aroused efficiently from one molecule to anotIT.

复分解是一种化学技能，能使原子团有效地从唯一分子转移到另唯一分子。

Exchang reaction of carbonyl with organic or inorganic ligands of electron-doner and metathesis of metal halids with carbonyl metal negative ion have been used to prepare some heteronuclear atomic clusters. The reaction condition are often moderate. They performed easier and have, a mord yield.

利用给电子有机和无机配位体的交换反应和金属卤化物与羰基金属阴离子的复分解反应，合成异核原子簇具有反应条件温和易于控制，收率较高的特点。

I also have synthesized nanocrystallinecobalt phosphides via metathesis reaction at 180℃. Different routes have been appliedto prepare nanocrystalline Ni〓P. The influences of the crystallization water of metalchloride were also discussed.A series sulfides of VIII metals have been fabricated.

1采用溶剂热技术通过置换反应在300-350℃合成了20nm的CrN纳米晶，与传统固相制备法相比，大大降低了反应和结晶温度；在180℃合成了磷化钴纳米粉，XRD显示两相共存(C0〓P、CoP)，TEM中也证实两种形貌的存在；该技术成功的解决了前驱物易水解的问题。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。