赔率bet

Movement 129
AnimatedOriginal 

129. Chinese windlass. This embraces the same principles as the micrometer screw 111. The movement of the pulley in every revolution of the windlass is equal to half the difference between the larger and smaller circumferences of the windlass barrel.

10bet_bet36体育在线_bet007 bet007足球比分 bet36_12bet_bet356体育在线 118betbet16瑞丰乐投188bet手机客户端足球最新网址365bet