国际劳动组织(I.L。D)的一项统计资料表明,由于外物飞来、落下或人员跌倒、坠落等原因引起的工伤事故中,头部伤害占15%。日本对人力装卸搬运作业工伤事故的有关资料表明,由于上述原因引起的伤害,头部伤害占13%。这两个数字(均不包括面部伤害)说明,头部受伤的频度是比较高的。因 According to a statistic by I.L.D, head injuries account for 15% of the total number of work-related injuries caused by flies, falls, or falls or falls of personnel. Relevant information on the accident at work in Japan concerning manpower handling and handling operations shows that head injuries account for 13% of the injuries caused by the above reasons. Both figures (not including facial injuries) indicate that the frequency of head injuries is high. because