本文用变分方法计算了环形电场与非均匀磁场重叠场的二级离子轨迹，以能量分散形式加以表述。
The second order ion trajectories in crossed toroidal electric and inhomogeneous magnetic fields are derived by means of the Fermat's principle and expressed in energy deviation.
通过离子轨迹的计算、离子光学系统的设计及一系列的实验研究，改善了系统中的匹配，提高了系统的性能。
The high performance has been achieved by careful calculation of the ion trajectories, close attention to the design of the ion optics and serial experimental studies.
研究者发现当等离子体辐射开来，其轨迹是杂乱无章的。
The researchers found that the trajectory of plasmons became increasingly disorganized as they strayed.
这张太空影像就是显示了进步42p飞船(俄称M - 20 M飞船)，在“回归”大气层时等离子化的轨迹。
This astronaut photograph highlights the reentry plasma trail of one such spacecraft, the ISS Progress 42p supply vehicle (Russian designation M-10M).
本文基于双曲面形样品针尖，计算了负离子原子探针中负离子的飞行轨迹。
The trajectories of the negative ions in the negative ion atom probe have been calculated for hyperboloidal tip shape.
指出了晶体表面结构，显示了负离子配位多面体在晶体生长过程中的结晶轨迹。
It is suggested that the surface structures show the locus formed by the combination of growth units of anionic coordination polyhedra on different surfaces during crystal growth.
本文利用平行平板模型，给出了在不同位置、以不同角度入射到平衡的磁镜等离子体中电子回旋波的传播轨迹；
Ray traces of the injecting electron-cyclotron wave into an equilibrium mirror plasma from different locations and with various angles are given by using a parallel plane-stratified-model.
计算结果表明：低速重离子的能量损失随初始电荷态的升高而缓慢上升，却随入射角度的增加而缓慢下降，离子的电荷态和入射角度对离子的掠角散射轨迹和能量损失都有影响。
It is observed that the energy losses decrease slowly with the increasing incident angles for low velocity ions, whereas swift ions lose more energy with the increase of the incident angles.
计算结果表明：低速重离子的能量损失随初始电荷态的升高而缓慢上升，却随入射角度的增加而缓慢下降，离子的电荷态和入射角度对离子的掠角散射轨迹和能量损失都有影响。
It is observed that the energy losses decrease slowly with the increasing incident angles for low velocity ions, whereas swift ions lose more energy with the increase of the incident angles.
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