常見例句雙語例句inversely proportional to the cross-sectional area of the rod.,棒子的橫截麪積,成反比。And that translates into a cross-sectional area of that wire of 2.0 times ten to the minus seven meters squared.將它轉換成,金屬絲的橫截麪積,等於2。0乘以10的,7次方平方米。So this will be the length of the femur d and this will be the thickness, d A and this will be the cross-sectional area A.所以這就是股骨的長度,這是它的厚度,這是它的橫截麪積。原聲例句The piston has a cross-sectional area, a, and the force pressure is force per volume area.我們以活塞系統(tǒng)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 返回 cross-sectional area