pitchyadj.沥青的;涂沥青的;沥青似的;漆黑的
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
pitch boiler硬沥青熬煮锅
pitch length节距
pitch filler沥青填料
pitch blades桨矩
pitched felt柏油毡
pitch moment俯仰力矩
pitch option调距选项
pitch a yarn编造荒诞无稽的故事
pitch cercle[机] 节圆
pitch system径节制