concentric的例句（concentric在句子中的用法）

• The curvature of the film is concentric with the mirror behind the meniscus. 胶片的曲率是和弯月透镜后面的反射镜同心的.
• On a blackboard, he drew five concentric circles. 他在黑板上画了5个同心圆。
• The street plan of the city has evolved as a series of concentric rings. 该城市的街道平面图像一圈圈的同心圆环.
• Concentric spheres are parallel. 同心球面是平行的.