1977年10日20日下午2时30分左右,在安徽省亳县张沃公社吝子门大队降落了两块陨石,命名为一号陨石和二号陨石(见图1)。25日我们赶到现场考察。据阎学文等几十人介绍,当时观察一号陨石降落的约200余人。开始听到象飞机呜呜响声,然后有点象鞭炮噼叭噼叭的爆炸声,落地时尘土腾空而起,象烟雾一样,尘柱约六、七米高。由于当时人们很惊疑,不敢 At around 20:30 on the 20th of 20th of October, 1977, two meteorites landed on the Zhangzhong Commune, Zengzi Gate, Bo County, Anhui Province, and were named as No. 1 meteorite and No. 2 meteorite (see Figure 1). We rushed to the scene on the 25th. According to dozens of people such as Yan Xuewen introduction, was observed on the 1st meteorite landed about 200 people. It started to sound like a whirring of a plane and then a bit like the explosion of a firecracker. When the dust landed on the ground, like a smoke, the dust column was about six or seven meters high. Because people were very suspicious at the time, afraid