查询词典 instability

The current was considered as the sheared electron flow, and the Kelvin-Helmholtz instability induced by the sheared electron flow of nightside magnetopause was discussed.

本文将这种电流看成电子剪切流，来讨论夜侧磁层顶的电子剪切流所引起的Kelvin-Helmholtz不稳定性问题。

And, comparing the nightside near earth magnetopause with the magnetotail, we found that when the ratio of electron number densities of magnetopause is constant, and high electron number density can raise K-H instability.

本文对比了夜侧近地磁层顶和磁尾磁层顶，发现当磁层顶两侧电子数密度之比恒定时，高电子数密度的磁层顶侧易产生K-H不稳定性。

They are often morphologically distinct from A chromosomes, being smallerand more highly heterochromatic in most cases. B chromosomes do not pair with Achromosomes, and they are inherited in a non-Mendelian way, exhibiting meiotic andmitotic instability and nondisjunction. However, B chromosome DNA is quiteidentical to the corresponding sequence on the A chromosome complement. So far afew B chromosome specific DNA sequence have been identified. Specific DNAsequences on B chromosome have been the attractive research area on Bchromosomes.

现已在千余种植物和近三百种动物中被发现。B染色体与物种中正常染色体不同：独立于整倍体基因组之外，减数分裂时不与A染色体发生联会和配对，细胞分裂后期不分离，非孟德尔遗传，富含异染色质，不含对宿主主要性状有影响的基因等。B染色体DNA的分子组成既与A染色体极为相似，具有A染色体DNA分子组成的一般特征：富含重复序列和转座成分，染色体三大功能组件DNA高度同源；又与之相区别，含有B染色体特异的DNA序列，这些DNA序列可以为探讨B染色体的起源和进化提供有价值的信息。

The results show that because of fourth-order dispersion,cross-phase modulational instability occurs at two spectrum regions in both the normal and the anomalous dispersion regime of fiber.

结果表明：由于四阶色散的影响，在色散缓变光纤的正、反常色散区，交叉相位调制不稳定均发生在两个频谱区。

It is shown that because of the fourth-order dispersion,cross-phase modulational instability occurs at two spectrum regions in both anomalous and normal dispersion regimes of fiber.

结果表明：由于四阶色散的影响，在光纤的正常、反常色散区，交叉相位调制不稳定性均发生在两个频谱区。

We have studied modulation instability of linearly polarized light not only in anomalous dispersion regime but also in normal dispersion regime when the intensities along the two birefringence axes are equal.

利用光脉冲在光纤中传播时所遵守的相干非线性薛定谔耦合方程，研究了偏振方向沿两个双折射轴的分量强度相等时，在反常色散区和正常色散区所产生的调制不稳定性。

The results showed that because of fourth-order dispersion, XPM instability occured at two spectrum regions in both the normal and the anomalous dispersion regimes of fiber.

正五阶非线性使增益谱的谱宽和峰值增大，负阶非线性使增益谱的谱宽和峰值减少。

We have studied modulation instability not only in an anomalous dispersion regime but also in a normal dispersion regime when the angle between the polarized direction and the birefringence axes is arbitrary.

利用光脉冲在非线性双折射光纤中传播时所遵循的相干耦合非线性薛定谔方程，研究了偏振方向与双折射轴成任意角度时，在反常色散区和正常色散区所产生的调制不稳定性。

President Obama needs support from India to stem rising instability in Afghanistan and its nuclear-armed neighbor Pakistan.

总统奥巴马需要印度的支持在阿富汗和它的拥有核武器的邻国巴基斯坦遏制不断上升的不稳定局势。

The nullity problem is very interesting in characterizing all graphs as well as in determination of the instability of a molecule in chemistry.

该问题不仅对于深入了解图的各种性质有重要意义，而且有很好的化学应用背景。

You'll be in trouble it you don't watch out .

如果你不注意，你会有麻烦的。

Shaped like a biconvex lens.Of, relating to, or having the form of a hyperbola.

双曲线的属于双曲线的，与之有关的，或有双曲线形状的