“同心的”用英语怎么说

胶片的曲率是和弯月透镜后面的反射镜同心的.The curvature of the film is concentric with the mirror behind the meniscus.具有大致同心的等压线的低压区在技术上称为气旋.A region of low pressure with roughly concentric isobars is known technically as a cyclone.一层层同心的虚无是...