"子午面"是个多义词，它可以指子午面（地理区域）,子午面（光学领域）。
... 锥形联轴器 taper coupling 子午面；轴面 meridian plane 自锁轴套 self-locking sleeve ...
基于2个网页-相关网页
天文子午面 [测] astronomical meridian plane
大地子午面 geodetic meridian plane
子午面投影 meridional projection of the sphere ; meridinal projection
本初子午面 prime meridian plane
磁子午面 magnetic meridian plate
子午面光线 [光] meridional ray
正射子午面投影 stereographic meridional projection
子午面量子数 mercury quantum number
当量子午面 Equivalent Meridian Plane
Moreover,aiming at multi-strength theory only have qualitative analysis in meridian plane or plane,direct comparison in-plane is presented. The results indicates that multi-shear strength criterion is of good applicability and high promotional value.
另针对多数强度准则只在子午面或π平面作定性分析的情况,特别增加了σ1-σ2平面上的直接比较,结果表明,该强度准则具有非常好的适用性及推广价值。
参考来源 - 基于粒子群算法的多剪强度准则研究·2,447,543篇论文数据，部分数据来源于NoteExpress
显然，这些子午面不一定是水平的和垂直的。
Obviously these meridional planes need not be horizontal and vertical.
在子午面内，研究具有嵌套闭磁场结构冕流背景对触发日冕物质抛射(CME)特征的影响。
The influence of a streamer background with nested close magnetic structures on the properties of CME initiated from its bottom is investigated in a solar meridian plane.
优化了300MW汽轮机的调节级，采用了子午面端壁收缩的弯曲叶栅，动叶为自带围带三销钉三联叶片，再用铆接围带形成整圈联结叶片。
The control stage of improved 300MW steam turbine used bowed static blade cascades with convergent tip endwall and integral shroud triple pin rotating blades.
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