2) spindle axial vib ration
主轴轴向振动
3) spindle system vibration
主轴系统振动
4) the vibration camalig main bearing
振动仓主轴承
5) Principle Polarization Axes(PPA)
偏振主轴
1.
For the first time ,this paper proves, that in an optical fiber with arbitrary index profile, which have not any geometrical axes in cross section and changes random in longitudinal section, there are a couple of orthogonal axes called as Principle Polarization Axes(PPA).
首次在保持线偏振不变的前提下，将偏振主轴的概念推广到任意光波导，证明了损耗与偏振无关的任意折射率分布的单模光纤中，存在两正交的偏振主轴。
补充资料：主轴
1.机械工程中，指从发动机或电动机接受动力并将它传给其它机件的轴。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条