concentric ring

基本解释

A new method called concentric ring, for calibrating the center of the distortion is adopted;
分析了光學成像系統中畸變校正的原理，採用了新的確定畸變中心的方法——同心圓環法；
This paper focuses on the concentric ring fractal array of the low side lobe characteristics in fractal antenna arrays.
在分形陣列天線中重點研究了具有低旁瓣特性的共心圓環分形陣。
According to different generators, the concentric ring fractal array can be divided into the linear array, the plane triangular array, the flat square array and the hexagonal array.
共心圓環分形陣可以根據不同的生成元而分爲線性陣、平麪三角陣、平麪方陣和六邊形陣。

The canals that ring the city in tight concentric circles are lined with 3, 000 of them, moored to centuries-old stone quays.
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