查询词典 donating

We described that the nitro group is a stronger electron withdrawing and meta activating characters than the imide group, the amino and hydroxy are both electron donating groups and had ortho, para activating characters. The methyl group might have a steric hindrance effect in this reaction. Our results indicated that methyl group at the ortho position of the amino group on the benzene ring, the steric hindrance effect became stronger.

另一方面，由产率上的结果来看，可以得知硝基为强力的拉电子基团，会减少邻位和对位胺基的电子密度比间位多；而氢氧基与胺基是供电子基团，会增加邻位和对位胺基的电子密度比间位多；甲基取代对反应则只有立体障碍的影响，而且与反应的氨基成邻位存在下影响最大。

However, the spectral stability was increased, and the 0-1 transition and the full width at the half-maximum of photoluminescence spectra was decreased with the increase of the alkoxy length on phenylene. The nature (e.g. electron-donating and electron-withdrawing) of the substituted side groups on phenylene has obvious effect on the optical properties, QY and electrochemical properties of the polymers.

苯环上取代侧基的给吸电子性质变化对聚合物的光电性能具有全面的影响，改变取代侧基的给吸电子性质可调节芴苯共聚物的发光颜色和HOMO、LUMO能级以及HOMO-LUMO能隙等，因此，通过引入不同性质的侧基可以实现对此类聚合物光物理性能的调控。

Catalyst acidity and hydrogen donating abilities of hydrocarbon solvent had marked effect on quinoline cracking.

催化剂的酸性、烃类溶剂的供氢能力对喹啉裂化有显著影响。

I like the idea of giving to charity in my mom's name, but she likes to get something as a gift, so I'm compromising this year and sending her flowers *shush - don't tell her* AND donating to a charity in her name this year.

我喜欢给慈善事业在我妈妈的名字，但她喜欢找些作为礼物，所以我妥协，今年她将花*嘘-不要告诉她*和捐赠给慈善机构她的名字在今年。

Soft money political donations made in such a way as to avoid federal regulations or limits, as by donating to a party organization rather than to a particular candidate or campaign.

规避联邦法规或限额的政治献金，例如捐献给壹个党派而不是捐献给某壹特定的竞选人。国内似乎没有对应的说法，也许可直译为"软钱"。

In fact, by donating money and joining Famine 12, participants have already changed the lives of children living in Swaziland.

事实上，饥馑十二参加者的捐款及行动支持，已改变了斯威士兰的小朋友的生命。

"By the 18th century, collectors were donating their holdings to the public and construct ing buildings to house them (e.g., the Louvre Museum, Uffizi Gallery)."

18世纪起，许多私人收藏的艺术品移交给博物馆收藏(如罗浮宫博物馆、乌菲兹美术馆〔Uffizi Gallery〕)。

"By the 18th century, collectors were donating their holdings to the public and constructing buildings to house them (e.g., the Louvre Museum, Uffizi Gallery)."

18世纪起，许多私人收藏的艺术品移交给博物馆收藏(如罗浮宫博物馆、乌菲兹美术馆〔Uffizi Gallery〕)。

The trouble was, it did so by donating two enormous and decidedly unprepossessing stone sculptures for which the Florentine authorities have struggled to find a suitable home.

宁波市回赠了礼物。麻烦在于，宁波市赠送的是两尊巨大的，且无疑并不美观的石雕。现在佛罗伦萨官方正在努力为这两尊雕像寻找一个合适的安放地点。

The results show that the formation of stable radical AH-R*between the antioxidant and the carbon-centred free radical R*from fat may be a main mechanism of the antioxidation to retard lipid rancid, and dihydrotanshinone I can also act as an antioxidant by donating a hydrogenatom to R*, becoming themselves an unreactive radical A*.

结果表明，抗氧化剂与油脂中碳中心自由基复合成稳定自由基，可能是丹参醌抑制或阻止油脂氧化酸败的主要途径，双氢丹参醌Ⅰ也可借助释放活泼H（本身转化成稳定自由基A*）有效清除R*。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。