periodic current reversal 周期反向电流
periodic polarity reversal 周期极性反转
periodic flow reversal reactors 流向变换反应器
The reversal process is not literally periodic as it is on the sun, whose magnetic field reverses every 11 years.
倒转过程不是真正具有像在太阳上那样的周期性，太阳磁场每11年出现倒转。
The existence and uniform boundedness of the global solutions of the model for sulphur dioxide oxidation in a tubular reactor with periodic flow reversal are proved by the invariant domain method.
利用不变区域方法，证明了二氧化硫催化氧化管式反应器流向变换强制操作模型整体解的存在性和一致有界性。
A new computational scheme was developed to solve a three-dimensional model of a periodic flow reversal reactor by ADI alternating direction implicit method.
文中针对圆管式径向对称流向变换反应器三维模型，利用交替方向隐式方法(adi)建立新的求解格式。
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