basal area的用法和樣例：
例句
- In the tree crown, the basal area growth of trunk sapwood is approximately equivalent to that of the upper branch sapwood.
在樹(shù)冠內，樹(shù)干邊材斷面積生長(cháng)量與其上部的枝條邊材斷面積生長(cháng)量大致相等。 - 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.
壓力差為階躍變化的情況下數值計算結果說(shuō)明了收縮部的斷面積的時(shí)間變化減少了收縮部的慣性效果。
