查询词典 valence

Optical absorptions for a semiconductor or insulator arise through electron transfers from the valence band to the conduction band.

光学吸收为半导体或绝缘体出现通过电子转移从价带至导带。

An unsaturated fatty acid whose carbon chain has one double or triple valence bond per molecule; found chiefly in olive oil and chicken and almonds.

碳链的分子均有一个二价或三价键的不饱和脂肪酸，主要存在于橄榄油、小鸡和杏仁中。

An unsaturated fatty acid whose carbon chain has one double or triple valence bond per molecule; found chiefly in olive oil and chicken and almonds.

碳链的分子均有一个二价三价键的不饱和脂肪酸，主要存在于橄榄油、小鸡和杏仁中。

Transition element Any chemical element with valence electrons in two shells instead of only one.

过渡元素及其化合物：价电子处在两个壳层而不是一个壳层里的任何化学元素。

CuO/γ-Al_2O_3 catalyat ; copper valence ; reduction in vacuo ; CO adsorption ; surface infrared spectrocopy

CuO／γ－Al_2O_3催化剂；铜的价态；真空还原； CO吸附；表面红外光谱

Formally,a control net without boundary is a polar net if it consists of extraordinary mesh nodes surrounded by triangles,and of quadrilaterals that have nodes of valence four.

正式地，没有界限的控制网是极性网，如果它包括三角围拢的非凡滤网结，有结化学价四的和四方形。

A number of v=0~57 vibration levels were determined and assigned. The levels cover more than 99% of the potential well depth of the state. No evident autoionization was found related to the levels belonging to the 13 g- state above the ionization threshold, implying the distinct character of the doubly excited valence state from the Rydberg states.

并发现13 g-态能级即使超过电离限时亦无明显的自电离倾向，反映了双电子激发态不同于里德堡态的独特性质。13 g-态是碱金属双原子分子电离限以下唯一的3 g-对称性的态和电离限下唯一较纯的双电子激发态，这些结果为分子结构和量子化学的定量研究提供了重要的信息；（2）通过检测Na 3d 3p原子荧光，观察到Na2分子的33 g和43 g+态在3s+3d解离限以上的预解离能级及其转动线宽加宽等。

This book focuses on the first of these methods: ab initio valence bond theory.

这本书集中於这些方法中的第1︰ ab initio价键理论。

The Rhne is an important route for inland navigation, connecting the industrial cities of Arles, Avignon, Valence, Vienne and Lyon to the Mediterranean Sea ports of Fos, Marseille and Sète.

罗纳河是一条内河航行要道，将众多工业城市，例如阿尔勒，阿维尼翁，瓦伦斯，维埃纳或里昂，与地中海港口福斯，马赛，赛特连接着。

In particular, valence grammatical theory is used to study the verb use of "秀".

在考察用作动词的&秀&时，运用了配价语法理论。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷