c. 1400, from Middle French concentrique, from Medieval Latin concentricus, from com- "together" (see com-) + centrum "circle, center" (see center (n.)).
实用例句
1. Concentric spheres are parallel.
同心球面是平行的.
来自《简明英汉词典》
2. 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.
来自《简明英汉词典》
3. On a blackboard, he drew five concentric circles.
他在黑板上画了5个同心圆。
来自辞典例句
4. Successive wave fronts in this case form a series of concentric spheres.
相继波前形成了一系列的同心球面.
来自辞典例句
5. The concentric orifice is most frequently used type.
