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When the electric discharge is very strong, collisions of high velocity electrons with molecules of gas result in no loss in momentum, and electron avalanching occurs.

当放电是非常强劲，碰撞的高速电子与气体分子造成任何损失的势头，电子avalanching发生。

Many swarm parameters have been obtained such as the electron density distribution, the energy and spatial distribution of the emitted electrons from the MHCD at various voltage and different dimension of micro-hollow cathode. Micro-hollow cathode discharges with slot and cylindrical cathode have been done, results show that pressure, cathode structure and the gas mixture will affect the stability of glow discharge. Micro-hollow cathode discharge array was obtained by individual ballasted discharge unit.

进行了槽型和孔型微空心阴极放电的实验，不同的气压、电极结构以及气体配比对放电稳定性有着明显的影响；采用分段镇流的方法，进行了微空心阴极阵列放电的实验研究，得到了均匀放电；做了大气压下MHCD自持的辉光放电研究。

The photoelectric effect occurs when light bombards a metallic surface and discharges the electrons from that surface.

除光速保持不变外，时空的一切量度都会随观察者的运动速度和参照系的不同而改变。

From time to time, the sun produces bursts of energetic ions and electrons; furthermore, charged particles are a major component of the galactic cosmic radiation that constantly bombards our solar system.

太阳有时会爆发高能的离子与电子；再者，以带电粒子为主成份的银河宇宙射线，也会频频轰击我们的太阳系。

The electric field then coaxes these free electrons and holes to move in opposite directions.

电场引力使自由电子和&孔&都朝相反方向移动。

A collimated flow of particles (atoms or electrons or molecules).

一束校准后的粒子流。

After compared the densities of states and the charge distribution of MgH2 with and without titanium addition, it is found that the improvement of dehydrogenating properties of MgH2 caused by titanium alloying originates from the weakened bonding between magnesium and hydrogen, and the increasing of the valence electrons at Fermi level and decreasing of the HOMO-LUMO gap near Fermi level.

电子态密度与电子密度的进一步分析发现：合金化体系解氢能力增强的主要原因在于Mg—H之间的成键作用较弱，以及Ti诱导费米能级 E F处电子密度 N的增加和 E F附近HOMO-LUMO能隙Δ E H-L的变窄甚至消失。

The analyses of electronic structures shows that the catalytic reactivities for H2 adsorption of the different surfaces are dependent on the numbers of s orbital bonding electrons around Fermi level for the uppermost layer metal atoms which interact directly with H2. It is easy to form vacancy for hydrogen atoms next to iron atom, which indicates that hydrogen atom cannot be escaped, but it is difficult to from vacancy for hydrogen atoms next to magnesium atom, which indicates that hydrogen atom can be escaped. Hence it is thought that the change of dehydrogenating properties of MgH2 with or without a little iron addition attributes to the weakened bonding between magnesium and hydrogen.

分析电子结构发现：空位缺陷有助H2吸附于Mg表面，与Mg(0001)表面最上层与H2直接产生吸附作用的金属原子在费米能级附近s轨道的成键电子数密切相关；在Fe合金化MgH2体系中，与合金化元素Fe近邻的H原子形成空位的难度增加，H原子较难释放；与Mg近邻的H原子形成空位的难度减少，H原子容易释放；Fe合金化导致Mg-H之间存在较弱的成键作用，因此，MgH2体系的解氢性能得到提高。

In a metallic material, the three dimensional ordered close packed metal ions are surrounded by delocalized electrons.

P15 金属材料中，三维有序紧密堆积的金属离子被离域的电子所包围。

Highly reactive and delocalized electrons would react with photons.

高度活性和非定域的电子应该能够与光子起反应。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。