The microorganisms can change the chemical valence of the vanadium, thereby changing its toxicity.
表明微生物能改变钒的价态。从而改变其毒性。
Only strictly controlling the temperature can it be prepared what needed especially for the Cobalt, Manganese precursors because of many chemical valence.
只有控制严格的温度才能制备出所需的产物，尤其对于化合价较多的钴、锰前驱物要尤为重视。
Now with this framework, I said that talking about these valence electrons might give us some insight into chemical reactivity.
现在在这个结构下，我说过讨论这些价电子可能会让我们对化学反应有更深的理解。
By using XPS, before and after the intoxication of mixed oxide catalysts, the various appearance and the composition. valence and chemical mechanism of the active component of catalysts were studied.
运用XPS分析方法研究一系列复合氧化物催化剂中毒前后硫在其表面的各种形态及催化剂活性组分中毒前后的组成、价态、化学机理及其变化。
It was assumed that, in a metal, the outer atomic electrons, known as the valence electrons since they are the ones which take part in chemical binding.
曾经假设，金属中原子的外层电子并不是束缚在个别原子上，这些外电子被称为价电子，因为它们是参与化学键的电子。
The average valence of vanadium in the catalysts was determined by chemical titration.
用化学滴定法测定催化剂中钒的平均价态。
In this paper, a new method has been reported which combines direct potentiometry with chemical method to analyse valence states of elements.
本文提出了一个将直接电位法与化学法相结合应用于元素价态分析的方法。
So, now with this framework, I said that talking about these valence electrons might give us some insight into chemical reactivity.
所以，现在对于这个结构，我认为讨论价电子能，会让我们对化学反应有更深的领悟。
So, now with this framework, I said that talking about these valence electrons might give us some insight into chemical reactivity.
所以，现在对于这个结构，我认为讨论价电子能，会让我们对化学反应有更深的领悟。
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