pivoting的用法和樣例：
例句
用作名詞 (n.)
- First get the feeling of pivoting.
首先要獲得繞軸旋轉的感覺(jué)。 - This short-arc coupled with the low pendulum effect achieved by pivoting the disc through a point near its center of gravity assures rapid closure.
繞軸旋轉的閥瓣的重力中心距軸心較短，因此這種短弧的鐘擺效應也比較小，從而確保能夠迅速關(guān)閉。
