二价

In this we have introduced the application of even formula in making certain equivalent double electrons′ atomic states and the generic way of making certain non-equivalent double electrons′ atomic states,and have got the quantificational connection between atomic states′ number and atomic orbital azimuthally quantum number.

偶数定则是确定非同科双电子形成的原子态的一般方法，根据偶数定则得到了二价原子的原子态数与原子轨道角量子数之间的定量关系；并用数学归纳法证明了有关结论。

The substituted group on the bipyridyl ligand in complex 2 could lose C2H4 neutral molecule under a higher CID fragmentation (such as CID 110 V), and its single charge ion is more stable than its double charge ion.

而络合物2在较高的CID电压下(1l0V)会发生联吡啶环上取代基的中性C2H4小分子丢失，其单电荷离子比二价电荷离子稳定。

A mixed indicator composed of bromocresol green, methyl red and phenalphthalein was used as indicator in titration of boron after the inteterience of cobalt was masked by EDTA.

采用甘露醇强化硼酸滴定硼时，以EDTA为掩蔽剂，可消除二价钴对硼分析的干扰；改用溴甲酚绿-甲基红-酚酞三元混合指示剂作为测定硼的指示剂，使滴定终点灵敏，准确。

Key words: chicken; infectious bursal disease virus; variant; bivalent attenuated vaccine; immunogenicity

关 键 词：鸡；传染性法氏囊病病毒；变异株；二价弱毒疫苗；免疫原性

Any of several esters, other than the ethyl ester, of carbamic acid .

亚胺源自氨的一种化合物，含有与一个二价非酸基结合的氨基

In this paper, the nanometer Co-Cu-B alloy powders had been prepared in solution of mixing cupric and cobaltous sulphate, by liquid reduction process, on the condition of pure water and the ethanol-water system, using KBH4 as a reducer, PVP as a dispersant.

本研究采用液相还原法，以KBH4作还原剂，PVP作分散剂，分别在二价钴、铜硫酸盐的纯水体系和乙醇-水体系下合成了纳米Co-Cu-B合金粉末。

Deferrizers and demaganizers are series of products designed by our company for underground water with comparatively high iron and managanese content according to aerating oxidation priciple.in these prducts,packed natural manganese sand in filter is applied as filtering materials,and oxygen in air is applied as oxidants,to make ferrous iron in water oxidized into ferric iron, in a same time, oxidation reaction makes its produced its produced substances left in filtering materials for purposes of deferrization and deman-ganization.

除铁锰装置是我公司针对铁、锰较高的地下水，按曝气氧化法的原理而设计的系列产品，它是利用过滤器内装填城然锰砂为滤料，利用空气中的氧化剂，使水中的二价铁，同时发生氧化反应使其物进截留在滤料中，从而达到除，除锰的目的。

Complete desynapsis found in rice so far.

以及单位细胞的二价体频率，确定该联会消失变异为完全联会消失变异。

Cardiolipin is a unique Phospholipid with dimeric structure, carrying four acyl groups and two negative charges.

心磷脂是脂类中独一无二的带有负二价头部基团及多达四条尾链的磷脂分子，是线粒体内膜的主要成分，作为与功能相关的膜结构转变的主要参与者，近几十年来深受研究者的关注。

The effects of pulse conditions and Ca〓, Mg〓 concertration in pulsing medium were studied systematically, and the fusion process (including the change of cytoskeleton in electrofusion) and the machanism of electrofusion of IBRS2 cells were also studied.

在分别考察了电场条件及二价离子Ca〓、Mg〓对IBRS2细胞电融合的影响后，进一步对细胞融合过程、细胞骨架在融合过程中的变化和作用进行了观察和研究，肯定了细胞骨架在细胞电融合中的作用，并提出了可能的理论模型

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。