你说50个微米相当于2根半头发是错误的，人的头发是在50微米到150微米之间平均直径80微米。请严谨发帖。

来源: blanchill 于 2016-08-08 06:17:42 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.