central meridian meaning in English

日心子午线
中央子午线

From the monotonicity of the power addition along the central meridian line of the surface , methods for selecting the design parameters is discussed
从渐变镜片光焦度平缓变化的单调连续性出发，分析讨论pal镜片设计参数的选取方法。
The head of a lot of points and jade harder can also stimulate acupoints over his head , can massage the brain and central meridian clear and comprehensive role in the treatment of cervical spondylosis achieve results
人的头部有很多穴位，玉石又较硬可刺激人体头部多处穴位，可按摩和疏通大脑中枢经络，综合作用达到治疗颈椎病的效果。