positive valency是什么意思

网络释义

用法例句

This paper introduces the method of applying valence in balancing inorganic and organic oxidation-reduction reaction equation.

介绍用化合价升降法配平无机、有机氧化还原反应方程式。

The effect of alkyl carbon numbers and the valence of Mo on the performance of extreme pressure additive was investigated.

报道了烷基碳原子数和钼的化合价对硫磷钼型极压添加剂（简称极压剂）的极压抗磨性能的影响。

Different dopants are chosen for PZT95/5 based on the principle of 搒ame valence/different ion radius and similar ionic radius/different valence? The effects of alkali-metal oxide, alkali-earth-metal oxide and the oxide of Fe, Si, Nb and W on the dielectric constant and tgd are investigated.

根据同化合价,不同离子半径;相近离子半径,不同化合价的原则选择氧化物对PZT95/5(PbZr0。

Having valence3.

三价的化合价为3的

Carbon has a valence of four.

碳的化合价是四价.

(chemistry) having a valence of 1.

（化学）有一个化合价的。

The valences of copper are 1 and 2.

铜的化合价是1价和2价

The combining power of one element in the compound must be equal to the combining power of the other element.

化合物中一种元素的化合价必须等于另一元素的化合价。

Having more than one valence.

多价的具有一个以上的化合价的

(chemistry) having more than one valence, or having a valence of 3 or higher.

（化学）具有一个以上的化合价的，或具有三价或更高价的。

The number of atoms in a molecule.

原子数，原子价，化合价单质分子中的原子数

the monovalent group -CN in a chemical compound.

化合物中的单价基CN。

molybdic compound

三价钼化合物（指其盐）；六价钼化合物（指其酸）

The value collision and value integration under the pluralism;

多元化背景下的价值冲突与价值整合

Fuzzy Comprehensive Evaluation of the Rationalization of Logistics Distribution;

物流配送服务合理化的模糊综合评价

The research on rural urbanization s comprehensive evaluation;

农村城市化综合评价的量化指标研究

Study of Structural Chemistry of Cu～Ⅰ-Cu～Ⅱ Mixed Valence Halo-cluster Complexes;

Cu～Ⅰ/Cu～Ⅱ混合价卤簇化合物的结构化学研究

The Study of Methodology for Preparing Cyclohexenone Catalyzed by Hg(Ⅱ)-salt;

二价汞盐催化的环己烯酮类化合物合成法研究

The Study of Housing Industrialization Comprehensive Evaluation Index System and Method;

住宅产业化综合评价指标体系及评价方法研究

The Quantity and Quality Integrated Evaluation on Normal English Curriculums;

高师英语课程量化评价与质性评价整合探讨

The Multi-evaluation on the Informational Level of Western China;

综合评价方法在西部地区信息化评价中的应用