我国幅员广阔,各种灾害几乎年年都有。解放以来,政府救灾专款已达数百亿元。在与灾害作斗争的过程中,我们的民族积累了丰富的经验,特别是各专门灾害学研究,已收集了大量资料,取得一定进展。但是,由于灾害的频繁和巨大破坏力,目前所 Our country has a vast territory and all kinds of disasters are occurring almost every year. Since liberation, the government relief funds have reached tens of billions of dollars. In the course of combating the disaster, our people have accumulated rich experience, especially in specialized disaster studies. We have collected a great deal of information and made some progress. However, due to the frequent and tremendous disasters of disasters, now