In concentric with the shaft of the plate to lay on a finite length solenoid power, the edge of the plate with a number of symmetrical fixed charged metal ball.
在该盘上与转轴同心地放着一有限长的通电螺线管，在盘的边缘均匀对称固定着若干带电金属小球。
We also investigate that both increasing the width of medium plate and the radius of embedded concentric circle are in favor of the new band gap emerging.
通过改变相关参数我们发现增加介质平板的宽度，增大内嵌介质柱的半径都有利于新禁带的产生。
The other end of each steel plate is welded on another annular steel plate, and the annular steel plate and the steel ring are concentric.
钢板另一端焊在另一环形钢板上，环形钢板与钢圈同心。
The other end of each steel plate is welded on another annular steel plate, and the annular steel plate and the steel ring are concentric.
钢板另一端焊在另一环形钢板上，环形钢板与钢圈同心。
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