A hypothesis of the mechanisms of radialmovement 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。
2
The analysis, treatment and evaluation method are discussed about the POLAR PLOT of shaft radialmovement 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。
3
We discussed the stability of both radialmovement and axis movement of charged particle in infirm focusing magnetic field and obtained the term of stability.