sectional area

• 断面面积,剖面面积

sectional area的用法和样例：

例句

1. The calculated result from an example shows that the stable sectional area reduces with the increase of working head, or the decrease of the tailrace tunnel length.
   计算结果表明，尾水调压室断面面积随水轮机工作水头的增大或尾水洞长度的缩短而减小。
2. The resistance is halved if the cross-sectional area is doubled.
   如果截面积增加一倍，则电阻减少一半。
3. In the tree crown, the basal area growth of trunk sapwood is approximately equivalent to that of the upper branch sapwood.
   在树冠内，树干边材断面积生长量与其上部的枝条边材断面积生长量大致相等。
4. Time dependent calculation for a suddenly imposed pressure gradient has shown that variation of the cross sectional area reduces inertial effect in the contraction flow region.
   压力差为阶跃变化的情况下数值计算结果说明了收缩部的断面积的时间变化减少了收缩部的惯性效果。