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蹦极是近年来新兴的一项非常刺激的户外休闲活动.跳跃者站在约40m以上高度的桥梁、塔顶、高楼、吊车甚至热气球上,把一端固定的一根长长的橡皮条绑在踝关节处,然后两臂伸开,双腿并拢,头朝下跳下去.绑在跳跃者踝部的橡皮条很长,足以使跳跃者在空中享受几秒钟的“自由落体”.当人体落到离地面一定距离时,橡皮绳被拉开、绷紧、阻止人体继续下落,当到达最低点时橡皮再次弹起,人被拉起,随后,又落下,这样反复多次,直到
Bungee jumping is a new and exciting outdoor recreation activity in recent years.Jumpers stand on bridges, towers, towers, cranes and even hot air balloons at a height of about 40m or more, and tie a long rubber strip with one end fixed thereon Ankle joints, then arms outstretched, legs folded together, and jumped head down. The rubber strap attached to the hopper’s ankle was long enough for the hopper to enjoy “free fall” for a few seconds in the air. When the human body falls a certain distance from the ground, the rubber cord is pulled open and tightened to prevent the human body from continuing to fall. When the rubber reaches the lowest point, the rubber bounces up again, the person is pulled up, and then drops again. This is repeated several times until