periodic swinging

用法例句

The characteristics of grain driers are discussed, after analyzing the periodic oscillation of water of grain by grain driers of different capacities and different types.

通过对不同处理量(300~500t/d)、不同烘干型式(顺流、混流、横流)、不同塔型(单塔、双塔)的粮食烘干机出机粮水分周期性振荡现象的分析,探求粮食烘干机的内在特性。

The purplose of this paper is to infer the optical field distribution at nearly optlcal axis of lens on Gausslan incident beam, to put the evaluation and the analysis of the pictures, at one time, and to draw the useful value conclusion of the periodic vibratility of optical field distribution at optlcal axis of lens.

本文导出高斯光束入射时透镜近轴光场分布，用数值及图形分析方法进一步对轴上光场分布的周期振荡性给出了一些有价值的结果。