实现双杆球的形式有两大类。一类是利用球门和球组织双杆球,即击球通过球门并在球门前后撞击到他球。另一类是在场内任何区域利用三个球组织双杆球,即在一次击球中同时或先后撞击两个他球。一、门前双杆球:(即撞球后过门)要求角度合适,距离适当,利用侧打分球、擦边球、擦顶球、 There are two main types of ways to achieve a double shot. One is the use of goal and ball organization double-rod, that hit the ball through the goal and hit the ball before and after his goal. The other is the use of three balls in any area of ​​the court to organize the double-shot ball, that is, hit a ball in the same time or hit two balls in succession. First, in front of double-rod ball: (that is, the ball past the door) requires the right angle, the appropriate distance, the use of the ball points, the edge of the ball, wiping the ball,