The other end of the swingingblock is connected with a swinging shaft.
它设置调节块、连杆和摇摆块。
2
Under arraying rope pillar function, two pieces of pulley block circles pillar to do left, right nimble swinging, which cause rope winds in regular arrangement.
绳索在排绳柱作用下，两个滑轮组绕柱子左、右灵活摆动，使绳索在卷绳轴形成有规则的排列。
3
When you are returning serve against a very fast server and you do not have time to hit a swinging return, just block the ball back almost like a volley.