中心面 meaning in English

center plane
centerplane
central plane

Controls when you do not need the four panels and central panel of a
的四个面板和中心面板时则启用对
Based on the conditions of compatible displacement and static force equilibrium , the finite element equations are built with the displacements of the middle surface as unknown variables
据此，再根据地基与板间的位移协调及静力平衡条件，建立了以板的中心面位移为未知量的有限元方程。
The plate on the elastic foundation is simulated according to the theory of both plane and bending problems , and the nodal displacements on the interface between the plate and the foundation are represented by the displacements on the middle surface of the plate
摘要按平面问题与薄板弯曲问题描述基础板，建立了基础板同地基接触面上的节点位移与板中心面位移之间的转换关系式。