查询词典 donating

The bay area has no substituent and has electron-withdrawing groups,such as bromine atom,cyano-group and 4-formyl phenoxy group compounds have strong absorption in 525 nm,when excitated them,they have strong yellow and salmon pink luminescence bettwen 538 and 566 nm.When introduce electron-donating substituents,such as phenoxy group,morpholinyl,piperidinyl and n-butylamino group,the absorption bathochromic shift while the electron-donating ability is improved,bettwen 536 and 692 nm have strong absorption,reach to the near-infrared region. When excitated them,only the phenoxy group compound has strong salmon pink luminescence in 572 nm,the others have no fluorescence.

其中，港湾位无取代的以及含吸电基团(—Br、—CN、对甲酰基苯氧基)化合物在525 nm左右处均有很强的吸收ε＞10~4M~(-1cm~(-1)，当光激发时，港湾位无取代、溴代和氰基取代物发出538～547 nm的强烈黄色荧光，对甲酰基苯氧基取代物则发出566 nm的强烈橙红色荧光；含供电基团(苯氧基、吗啉基、哌啶基、正丁氨基)化合物随着供电子能力的增强，吸收发生红移，在536～692 nm处均有很强的吸收ε＞10~4M~(-1cm~(-1)，达到了近红外区，当光激发时，只有苯氧基取代物发出572 nm的强烈橙红色荧光，而含氮供电基取代物均发生了荧光淬灭。

Air France is donating its fleet of five Concorde's to museums after the last flights later this year.

在今年晚些时候进行最后几次飞行后，法国航空公司将把五架协合式飞机捐献给博物馆。

In general, catalytic activities of iron complexes bearing electron-donating alkyl groups increase with the net charges increasing.

取代基的电子效应占主导作用的催化剂，活性与中心金属原子净电荷有较好的相关性。

In some countries, donating a capital asset such as stock

在一些国家，捐赠像股票证券和房地产等的资本资产，可以

In some countries, donating a capital asset su ch as stock

在一些国家，捐赠像股票证券和房地产等的资本资产，可以

And 100%, respectively, under optimized reaction conditions. The existence of electron-donating groups on the benzene ring would enhance the activity of phenols.

使用苯酚作反应底物考察了各因素的影响，在优化的反应条件下，苯酚的转化率可达到99.8％，产物苯甲醚的收率高达99.8％。

You are so generous. Can you think about donating to a blood bank or bone marrow center in India. You can save someone's life.

你真慷慨，你可不可以考虑一下捐到印度的血库或是骨髓中心，你可以救一些人的生命。

And I suddenly learnt that; homosexuals are in the category of "groups not allowed donating blood".

但是看完之后，我才突然发现，原来"同性恋者"是"不能献血"的人群！

If you find Chipmunk has saved you a lot of time, please consider donating.

它能够是游戏开发者变得快乐。

The result indicated that absorption band of chromophore suffered bathochromic shift when electron-donating capability was increased.

结果表明：给电子基团给电子能力的增强使光谱产生一定的红移。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。