donating的例句大全

Electron-donating groups can increase the intensity of fluorescence, but the electron-withdrawing groups have opposite functions.

供电子取代基能增加卟啉的荧光强度，而吸电子取代基作用相反；

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The photodegradation experiment showed that the introduction of electron withdrawing group on methane chain would improve the photo-stability of the dye, while electron donating group would decrease the photo-stability.

三种染料与其母核染料的光降解对比试验说明，甲川链上引入吸电子基团使得染料光稳定性提高，而供电子基团则光稳定性下降。

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We use N-ethyl carbazole as the electron donating group, and the cyanoacetate as the electron-withdrawing group, connecting the two parts together by converting different II bridge bonds.

以n-乙基咔唑作为供电子基团，氰基乙酸为拉电子基团，通过变换不同的∏桥键来合成。

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As soon as the outbreak began in Taiwan, the mainland expressed its willingness to make prompt arrangements to provide the island with vaccines and to support NGOs in donating them to Taiwan compatriots, Ma said.

马晓光在发布会上介绍，台湾疫情暴发以来，大陆第一时间表达了愿意向台湾同胞提供大陆疫苗，支持民间机构向台湾同胞捐赠疫苗。

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The pitch: The Walnut Creek, Calif.-based online charity site is all about raising small donations, pooling them together, and donating them to a cause.

卖点：这家位于加州核桃溪市的在线慈善网站的主营业务在于募集小型捐款，汇集这些捐款，然后捐给某项慈善事业。

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The influence of the molecular conjugated chain length and the electron-donating group on βμ was examined.

考察了分子共轭链长、给电子基团对βμ的影响。

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What are you doing here ? Peter? Donating money for a schoolmate infected with a deadly disease.

你在干嘛? Peter? 在捐钱给一个患上致命疾病的校友.

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You can help out by donating idle time of your computer to the project.

您可以通过捐献您的计算机的闲置处理时间来帮助本项目。

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Erin Taylor, 30, a nurse in Edmonton, Canada, was inspired by a story line in the drama to sign up to a national organ donor programme in a move that resulted in her donating one of her kidneys to a critically ill stranger.

30岁的Erin Taylor是加拿大埃德蒙顿市的一位护士，受该剧中一个故事的启发，加入了国家器官捐献计划行动，把自己的一颗肾脏无偿捐献给了一位严重病患。

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Not to be outdone, other computer manufacturers are also donating machines to schools.

其他的计算机生产商也不甘落后,纷纷向学校捐赠计算机设备。

朗文当代高级英语词典 第6版

Electron-withdrawing 2-substituents electron-donating 3-substituents of the phenyl ring are favorable for increased herbicidal activity.

苯环2位是拉 电子基,3位是给电子基有利于提高除草活性.

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