二价

The reduction of chromosomes in the hybrid and the high numbers of bivalents were possibly due to the chromosome of Crambe abyssinica eliminating and the genome of Brassica.

杂种PMC减数分裂中，平均配对构型为0.06Ⅲ+11.26Ⅱ+3.80Ⅰ，二价体数目变化于8～13之间，以10Ⅱ、11Ⅱ、12Ⅱ的细胞出现频率较高，分别为26.60%，23.91%和30.98%，单价体数目变化于0～8个之间。

A KCl coat denuder was employed for the measurement of divalent mercury(Hg2+)in air.

用KCl涂层的扩散管测定了大气中的二价汞（Hg2＋）。

Diakinesis bivalents end of some of the homologous chromosomes together only at the end.

终变期末有些二价体的同源染色体只在末端连在一起。

Chromosomes of the normal plant of LH422 at early diakinesis; E.

正常株的花粉细胞在终变期早期二价体的形态；E。

Chromosomes of the normal plant of LH422 at late diakinesis

正常株的花粉母细胞在终变期晚期二价体形态

Two signals of 45S rDNA were mapped on the mitotic metaphase chromosomes in the F1 hybrids, respectively, and one signal was present on a bivalent during meiotic of synaptene, diakinesis, and metaphase I. We inferred that the two mitotic chromosomes carrying 45S rDNA were homolo-gous pairs.

在有丝分裂中期染色体上2个杂种分别检测到2个杂交信号，在减数分裂粗线期、终变期、中期Ⅰ染色体上45S rDNA位于一个二价体上，说明这两个杂种携带45S rDNA的染色体为同源染色体。

The extent of the influences of divalent metal ions depends on the components of hydrocarbon chains of the lipids.

对于相同极性头部的磷脂，二价金属离子影响的强弱取决于碳氢链的组分。

Because of different binding constants with surface functional group, there is different mobility with different kinds of divalent cation.

不同二价阳离子因为其与细胞表面官能基键结常数不同，而造成不同的电泳迁移率的变化。

Activity of PncA protein is influenced by EDTA or divalent metal ion.

PncA蛋白也会受到EDTA及二价金属离子的影响。

According to available data, it seems that the HIV virus, antibodies play a role in bypassing the key effect of divalent ---.

根据掌握的数据，似乎HIV病毒绕开了抗体发挥作用的关键———二价效应。

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。