1) parabolic cross section
抛物型断面
1.
Governing equations of nonprimatic channel unsteady flow are simplifiedly analyzed with the expressed form of channel parabolic cross section by variation of distance,and applied with dam sudden release problem in nonuniform wetted perimeter cross section on neglecting friction and slope effects.
利用明渠沿程抛物型断面的概化关系式,对棱柱体明渠非恒定流的控制方程进行简化分析,并应用于忽略底坡和摩阻影响的非单一湿周断面明渠瞬时全溃问题。
4) parabolic surfaces
抛物型曲面
1.
Correspondingly the definitions ofthree kinds of curved surfaces are given, that is the definitions of elliptic surfaces,hyperbolic surfaces and parabolic surfaces.
具体介绍了由圆锥曲线的轨迹生成的三类曲纹曲面——椭圆型曲面、双曲型曲面和抛物型曲面。
5) parabolic trough
槽型抛物面
1.
Simulation of parabolic trough solar power generating system for typical Chinese sites
槽型抛物面太阳能电站的前景和不同冷却系统的比较分析
补充资料：异形断面钢材(见异形断面型材)
异形断面钢材(见异形断面型材)
special section steel
，一、u以uu、’“飞豆on gQngC01异形断面钢材(speeial Seetion steel)见异形断面型材。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条