查询词典 valency electron

Effects of temperature,pH value, electron donor and electron acceptor on denitrification were studied.

研究了温度、pH值、电子供体种类及电子受体种类对反硝化的影响。

The results suggest that mullite is likely to combine with electron acceptor rather than with electron donor.

计算结果表明，莫来石很容易与电子接受体结合，不容易与电子给予体结合。

Therefore, Fe〓is the source of electron and RCl is electron acceptor.

取得的重要成果和创新之处主要体现在： 1。

An electron-rich acetylide ligand would render the metal center more electron-rich and hence raise the dπ orbital energy, leading to decrease energy of the MLCT excited state.

证明通过改变乙炔基配体取代基的电子效应，能够调节最低激发态MLCT态的能量。

The cytoplasm of PGCs was weak acidophilic. By transmission electron microcopy, the electron–dense bodies were observed in the vicinity of PGCs' nuclear membrance.

此外，其早期胚胎的PGCs中有卵黄块；在迁移过程中发生不同程度的变形；PAS反应阳性。

March 4, 2009, I sent investigation of business affairs of two articles electron in Admin5: Ran is blind why actinium why the new market that business affairs of electron of? of Ran of ferminum Ч?

2009年3月4号，我在admin5发了两篇文章电子商务调查：比较购物购物效果比较电子商务带来的新市场。

Basis " law of autograph of electron of Chinese people republic " regulation, the legal effectiveness that effective electron signs is equal to be mixed at handwritten sign affix one's seal, this is the legal cornerstone that trades on all nets.

根据《中国人民共和国电子签名法》规定，有效电子签名的法律效力等同于手写签名和盖章，这是所有网上交易的法律基石。

The catalyst includes: supported Ziegler-Natta catalyst of titanium halide compound and organic electron donor compound supported with MgCl2 alcoholate carrier; aluminoxane prepared with trialkyl aluminum and water; and one kind of organic electron donor, such as organosilicon compound R2Si(OCH3)2, where R is phenyl, isopropyl, isobutyl or cyclopentyl.

该催化剂包括，a一种负载型的Ziegler-Natta催化剂，即将卤钛化合物和有机给电子体化合物负载在氯化镁醇合物载体上得到的固体催化剂，b一种通过三烷基铝与水反应而制备得到的铝氧烷和c一种有机电子给体，如有机硅化合物R 2 Si(OCH 3 ) 2 ，其中R为苯基、异丙基、异丁基或环戊基。

The pigments synthesized from 2, 7-diaminoflurenone consistently show better photosensitivity than that containing anthraquinone. A plot of the E1/2 values against the Hammett constant σ was obtained for the pigments which have different substituents in the anilide ring. The plot reveals that neither a strong electron-releasing group, such as methoxy, nor a electron-withdrawing group, such as nitro-group, enhances the sensitivity of the photoreceptor in which these pigments are used as CGL materiel.

芴酮类偶氮染料的光敏性优于蒽醌类偶氮染料，其偶合基酰胺芳环取代基为强的给电子基团或强的吸电子基团时都不利于其光敏性的提高，只有当取代基基团为氯时其表现出最好的光敏性，这一结果与Law等人的研究结果相同。

The conversion of the cyclobutanes to the corresponding annulation products was achieved by a reaction sequence of [elimination of HCl in the cyclobutanes-4 electron electrocyclic ring opening-6 electron electrocyclic ring closure-elimination of another HCl molecule] .

这些环丁烷产物向增环产物的转化是经一个[脱除－分子HCl得环丁烯－环丁烯电环开环为丁二烯－6电子电环闭环－脱除另一分子HCl]这一连续反应进行的。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。