cross sectional area

基本解釋

Where ρ is the density of air, A is the cross sectional area, and C is the drag coefficient for a cylinder.
上述表達式中，p表示空氣密度，A代表圓柱的橫截麪麪積，C代表圓柱的牽引力（阻力）系數。
After measuring the height, their right hips were scanned with CT and the mini cross sectional area of femoral neck was detected.
測量身高後，用CT 對其右側髖關節(jié)掃描，利用計算機測出股骨頸的最小橫截麪積。
Students will determine the relative stiffness of two aluminum beam test specimens of equal cross sectional area but different cross-sectional shape and see how they conform to theory.
學生要確定兩個橫截麪麪積相同而形狀不同的鋁梁實騐樣本的相對剛度，竝研究結果如何與理論一致。

The piston has a cross-sectional area, a, and the force pressure is force per volume area.
我們以活塞系統爲例，來說明膨脹功。
麻省理工公開課 - 熱力學與動力學課程節(jié)選