极光的出现缘于太阳风离子与高层大气中的氧氮原子的碰撞。
Auroras happen when ions in the solar wind collide with atoms of oxygen and nitrogen in the upper atmosphere.
这项成果是基于，在大型强子对撞机在2010年最后两周的运行期间，对其收集的数据进行的分析，当时这台原子对撞机改换成氢质子对铅离子的碰撞。
The results are based on analysis of data collected during the last two weeks of the 2010 LHC run, when the atom smasher switched from colliding hydrogen protons to lead-ions.
这些被离子化的分子如果再次与电子结合，或彼此发生碰撞，其所产生的能量就会把分子裂解成高速飞行的原子而进入太空。
When the ionized molecules recombine with electrons or collide with one another, the energy released splits the molecules into atoms with enough speed to escape.
电子碰撞过程可将靶原子或离子激发至无数的束缚态、自电离态和对应的连续态，多通道量子数亏损理论能够统一地处理这些激发态。
The target atom or ion may be excited to infinite bound states, auto-ionizing states and adjoint continuum states which can be treated in an unified manner by Multichannel Quantum Defect Theory.
基于蒙特卡罗方法，建立了程序模拟离子与原子碰撞中的反冲离子飞行时间谱。
A program is established based on the Monte Carlo technique to simulate the time of flight spectrum in ion atom collisions.
结果表明，等离子体的产生是由于电子束对氦原子的碰撞电离及其雪崩效应引起的。
The generation mechanism of the plasma and its effects on the output microwave are analyzed.
当离子在鞘层运动时，考虑离子与中性原子之间的电荷交换和弹性碰撞，以及离子被尘粒的库仑散射和收集作用。
The charge exchange and elastic collision between ion and neutral atoms and the collection and Coulomb scattering of ion on dust grains are considered.
介绍了离子-原子碰撞过程中双微分绝对截面的计算方法。
This paper presents the measurement results of absolute cross-sections of ion-atom collision in detail.
阴极发射出电子用以加热栅极并和产生的可电离气体原子相碰撞来产生离子。
A cathode emits electrons to heat the grid and to collide with produced ionizable gas atoms to generate ions.
从微观机制上分析推断：外加电场使非稳态等离子体中的电子作定向运动，加剧电子与原子之间的碰撞是上述结果的主要原因。
The collision between atoms and electrons moving in a definite direction with the additional static electric field is considered to be the primary reason for the result mentioned above.
负离子与原子碰撞的单电子脱附过程是普遍存在于等离子体物理、天体物理、电离层物理学中的重要过程。
The single electron detachment of negative ions in collision with atoms is known to be one of the most fundamental processes occurring in plasma physics, astrophysics, and ionospheric physics.
本文运用碰撞—辐射模型，在给定的等离子体参数条件下，计算了“纯原子”弛豫过程及各能级的粒子数布居，并对计算结果进行了讨论。
With the C- R model, on the condition of given plasma parameters, we calculated the "pure atomic" relaxation and population of Li- like Al ions.
本文运用碰撞—辐射模型，在给定的等离子体参数条件下，计算了“纯原子”弛豫过程及各能级的粒子数布居，并对计算结果进行了讨论。
With the C- R model, on the condition of given plasma parameters, we calculated the "pure atomic" relaxation and population of Li- like Al ions.
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