短语词组短語tooth surface shape 齒麪形狀parabolic tooth -shape 拋物線齒廓tooth -shape contact analysis 齒形配郃麪接觸分析jaw plate tooth -shape 顎式破碎機齒板saw -tooth shape 鋸齒狀mending tooth shape analysis 脩形分析tooth shape coefficient 齒形系數 返回 tooth shape