在各类运动中,数以足球领先。足球球迷在世界上最多。世界杯足球比赛,有多少球迷为之发狂。半夜里看球赛,白天照常上班,老人球迷也有轧闹猛的。但大家只知球员比赛,对皮制球是怎样出来的,知之者甚少。要知道球的好坏,对球员在比赛中的成绩,有着十分重要的影响。球员与制球有着密 In all kinds of sports, the number of leading football. Football fans are the most in the world. How many fans mad at the World Cup football match? Watch the game in the middle of the night, work daytime as usual, the elderly fans also have fierce slashing. But we only know the players competition, the leather ball is how come out, little is known. To know the quality of the ball, the players in the game’s performance, has a very important influence. The player and the ball have a secret