pitch speed
英
美
- pitch n.球场;程度;音调;推销;投掷;街头商贩摊位;沥青;树脂;松脂v.投;颠簸;搭帐篷;定调;推销;用沥青覆盖
- speed n.速度;迅速v.加速;急行
- Convolutions frequently alternate in direction of rotation and vary in pitch.
盘旋经常改变回转方向和节距。
- The straightening effect of straightener can be improved along with the change of pitch.
采用改变节距的方法,提高矫直机的矫直质量。