A hypothesis of the mechanisms of radial movement of heavy metals in tree rings is put forward in the text.

并对树轮重金属元素径向迁移驱动机制提出了假设。

The analysis, treatment and evaluation method are discussed about the POLAR PLOT of shaft radial movement deviation.

讨论了主轴径向误差运动园图象的分析处理和评定方法。

We discussed the stability of both radial movement and axis movement of charged particle in infirm focusing magnetic field and obtained the term of stability.

我们探讨了弱聚焦磁场中带电粒子轴向和径向运动的稳定性问题，得到稳定性条件。

Here, the two apparent contradictions inherent in libraries are allowed to coexist by the form of spiral possessing two antinomic movements of radial path and rotational movement.

在这里，两个看似对立的概念通过螺旋体布局模式得以共存。这个模式涵盖了旋转路线和径向路线两种运动模式。

According to the movement direction, it falls into radial clearance and axial clearance.

根据移动方向，可分为径向游隙和轴向游隙。