pitchupn.上仰
pitchn.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
pitching anticline伏背斜
pitch scale factor音调比例因子
pitch and putt golf小型高尔夫球
pitch of the rivets铆钉距
Pitch Control Motor俯仰控制电动机
pitch guidance loop俯仰角制导回路
pitch angle control倾角控制
pitching of vehicle车辆前后颠簸
pitch on a mountain在山上扎营
pitch worker cancer沥青工癌