电子对

The conversations (below 60%) of these polymerization reactions are much lower than those of TPH and DCB, indicating that the trimerization is favorably promoted by the activation of strong electron-withdrawing substitutents in the para-orientation.

自制二腈聚合转化率均低于60%，低于TPH和DCB的转化率，说明吸电子对位取代基有利于氰基的三聚反应。

The dispersion relations of superluminal waves for the longitudinal collective modes in unmagnetized, collisionless and homogeneous relativistic electron-positron plasmas are derived.

导出了无磁化无碰撞各向同性相对论正负电子对等离子体纵波的色散关系。

First, the background spectrum is subtracted from experimental one; Second, by the spectrum stripping, the counts came from partial energy deposition of incidence photon in HPGe crystal, such as Compton scatting or pair production; the next, transform the experimental spectrum to the incidence photon flux spectrum.

实验数据的处理过程有三步：1 从实验谱中减掉本底谱；2 实验谱中分离掉各种能量的入射光子在晶体中的部分能量沉积(康普顿散射、电子对效应)：3 处理过的实验谱转成入射光子通量谱。比较结果显示，在本实验中，模拟谱对实验谱的总计数相对偏差不大于20%，两者基本符合。

This harassment includes electronic mind/body attacks, street harassment skits, destruction of family and other relationships and destruction of careers.

这种折磨包括电子对精神/身体攻击，街头诽谤的骚扰，破坏家庭和其他关系，以及破坏事业。

Neutralino dark matter is thus expected to pair-annihilate in very dense regions, producing high-energy particles such as pions and electron-positron pairs and high-energy photons.

因此，在非常致密的区域中性超对称粒子可以成对湮灭，产生高能的粒子，如介子，正负电子对还有高能的光子。

The last bond I will talk about is the triple bond, which is the sharing of three pairs of electrons.

我要讲的最后一种为三键，这是共用三对电子对时形成的。

"Compton effect: Change in wavelength of X rays and other energetic forms of electromagnetic radiation when they collide with electrons. It is a principal way in which radiant energy is absorbed by matter,"

康普顿效应：电子对X射线和其它高能电磁辐射的弹性散射引起波长增大的现象；这是物质吸收辐射能的一种主要方式。

"Compton effect: Change in wavelength of X rays and other energetic forms of electromagnetic radiation when they collide with electrons. It is a principal way in which radiant energy is absorb ed by matter,"

康普顿效应：电子对X射线和其它高能电磁辐射的弹性散射引起波长增大的现象；这是物质吸收辐射能的一种主要方式。

"Compton effect: Change in wavelength of X rays and other energetic forms of electromagnetic radiation when they collide with electron s. It is a principal way in which radiant energy is absorbed by matter,"

康普顿效应：电子对X射线和其它高能电磁辐射的弹性散射引起波长增大的现象；这是物质吸收辐射能的一种主要方式。

It utilizes the knowledge of nuclear physics, photo-electricity, polymer physics, computer technology and mathematics synthetically, the polymer morphology in solid conveying can be visually obtained by the interaction of polymer atom or polymer chain and the photon beam caused by γ-ray, in which the photoemission, Compton effect and electron pair effect will be generated.

该方法综合运用核物理学、光电子学、高分子物理、计算机技术和数学知识，通过γ-射线的光子流与聚合物原子、聚合物链段相互作用所产生的光电效应、康普顿效应和电子对效应，来图像化地测量固体输送段的聚合物形态。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。