横断面的cross-sectional
横断面面积cross-sectional area
横断设计crosssectional design
截面调查cross-sectional survey【统计】
生理横截面积physiological cross-sectional area【生理】
截面惯性矩cross sectional moment of inertia
【运输】组合钢sectional steel
十字形切断分析cross sectional analysis