求翻译：健康男女老幼人体全身的肌肉共有639块。约由60亿条肌纤维组成，其中最长的肌纤维达60厘米，最短的仅有1毫米前后。大块肌肉有2000克重，小块的肌肉仅有几克。一般人的肌肉占体重的百分之35--45。肌肉内毛细血管的总长度可达10万公里，可绕地球两圈半。是什么意思？

Healthy young and old human body a total of 639 muscles. From about 6 billion of muscle fibers, of which the longest fibers of 60 cm, the shortest is only 1 mm before and after. 2,000 grams of large muscles, small muscles only a few grams. Muscles generally 35 percent of total body weight - 45. The

Healthy men and women, young and old human body muscle a total of 639 pieces. About the Convention article 6 billion fibers, the longest of muscle fiber up to 60 cm long, the shortest of the before and after only 1 mm . Muscle chunks 2000 grams and small pieces of muscle only a few grams. In general

The healthy male and female old and young human body whole body muscle altogether has 639.Is composed approximately by 6,000,000,000 muscle fiber, in which longest muscle fiber amounts to 60 centimeters, shortest only has around 1 millimeter.The bulk muscle has 2000 gram heavy, the scrap muscle only

Healthy men and women there are 639 muscles of the human body. From about 6 billion of muscle fiber composition, one of the most muscle fibers up to 60 cm in length, the shortest of before and after only 1 mm. Large muscles 2000 weight, small piece of muscle of only a few grams. Generic human muscle

Healthy young and old human body a total of 639 muscles. From about 6 billion of muscle fibers, of which the longest fibers of 60 cm, the shortest is only 1 mm before and after. 2,000 grams of large muscles, small muscles only a few grams. Muscles generally 35 percent of total body weight - 45. The