查询词典 conic polar

From legends and the sunspot cycle theory of the Maya, we can reconstruct the cause of a polar reversal.

从传说和太阳黑子周期理论的玛雅，我们可以重建事业极地逆转。

Polar reversals can be calculated precisely on the basis of the sunspot cycle theory or the magnetic field theory, which the Maya and the Old Egyptians were privy to.

极地逆转可以计算出准确的基础上太阳黑子周期理论或磁场理论，玛雅人和埃及人的旧枢密院到。

On the analogy between plane elasticity and plate bending theory, moment functions of plate bending in polar coordinates are introduced as original variables to establish a symplectic space in circumferential direction for the bending of annular sector plate with an appropriate definition of symplectic inner product.

根据平面弹性与薄板弯曲问题的相似性原理，极坐标系板弯曲的弯矩函数被引入作为原变量，并通过恰当的辛内积定义建立了环扇形薄板弯曲问题的一个辛几何空间。

In the mature embryo sac, the synergid filiform apparatus, the polari-ties of the egg and zygote and the two polar nuclei are significant.

在授粉后18-24小时，卵细胞开始受精，在授粉后54-58小时，合子开始分裂，但初生胚乳核则在授粉后32小时已开始分裂。4。

These nuclei arise as a result of the three meiotic divisions that produce the egg cell, synergid cells, and polar nuclei, but they do not themselves takd part in the fertilization process.

反足细胞本身并不直接参与受精过程。

It takes about 0.5 h for a pollen tube from germination to arrive at the micropyle. About 0.5 h after pollination, the pollen tube releases two sperms into one synergid. At 0.5-2.5 h after pollination, the egg cell fuses with one sperm to form a zygote. About 10.0 h after pollination, the division of the zygote begins. The duration of the zygote lasts about 2.5-10.0 h. However, one sperm nucleus fuses with two polar nuclei at 1.0-3.0 h after pollination, and 5.0 h after pollination the primary endosperm nucleus begins to divide.

水稻受精过程经历的时间表如下：授粉后，花粉在柱头萌发；花粉萌发至花粉管进入珠孔大约需要0.5小时；授粉后0.5小时左右，花粉管进入一个助细胞，释放精子；授粉后0.5-2.5小时，精卵融合形成合子；授粉后约10.0小时，合子第1次分裂，合子期为授粉后2.5-10.0小时；授粉后1.0-3.0小时，精核与两极核融合；授粉后约5.0小时，初生胚乳核分裂。

By adopting its complex variable solutions, the stress solutions of dislocation in bi-material on the whole plane were worked out, integration of which along the crack line would lead to the basic stress solutions in Cartesian and polar coordinates system of an bi-material incline crack.

应用两相材料中点位错在全平面的复势函数解，导出了两相材料中点位错在全平面的应力场解，进而将该解沿裂纹线积分得到倾斜裂纹的直角坐标及极坐标应力场基本解，同时利用该基本解退化出单根界面裂纹的直角坐标及极坐标应力场基本解。

The difference in solvent polarity environment between excited state intramolecular charge transfer and proton transfer states leads to a remarkable ESICT/ ESIPT coupled reaction. In polar, aprotic solvents, in contrast to a unique PT tautomer emission observed in 3-hydroxyflavone (3HF), dual emissions are resolved, consisting of ESICT and ESIPT bands.

不同於化合物3-hydroxyflavone只观察到异构物的质子转移萤光放射峰的结果，在极性、非质子酸溶剂里，我们会观察到3-hydroxyflavone衍合物有两个萤光放射峰，是分别经由ESICT与ESIPT两种不同路径个别的贡献。

All of this differences for spectra, especially the behavior of negative solvato-chromism in polar solvents, and the effect of pH value on the tautomerization of compound have been discussed in detail.

对出现这种差异，特别是负的溶致变色行为和在不同pH条件下分子的互变异构等对吸光谱的影响进行了讨论。

He needs to ensure a smooth transfer of power from an incumbent who is ideologically and temperamentally his polar opposite.

他需要从一个在意识形态和气质上都和自己截然相反的现任者中平稳的接管权力。

This was not understood at the time, and therefore went unaddressed, until ascension became so distorted that we chose to stop ascending and wait for a time when all records would be revealed.

这在当时没有被了解，因此进行着无改编，直到提升变得如此扭曲，我们选择去停止提升并等待所有记录能被揭示的那一天。

The attack＇s nuisance value is increased because mobile phone networks also send notifications of new voicemail by sms,so an attacked phone may stop advising of new voice messages too,it warned.

它警告：这种攻击的危害增长是因为移动电话网络也会通过短信发送新语音邮件的通知。所以受到攻击的手机可也以停止新的语音信息的提示。