垂直截面面积
Perpendicular cross section area
计算截面面积
calculated cross-sectional area
剪力墙截面面积
shear-wall cross-sectional area
截面面积测微仪
Micrometer of cross-sectional area of soft tissue
螺栓有效截面面积
ettectlve cross―section area of bolt
起始横截面面积
original cross sectional area
切屑横截面面积
chip cross-sectional area