昔日一场战争,使中越300多平方公里的边境线上留下了560多片大小雷区,这些地雷多数为对方埋设,且各种各样,有压发雷、触发雷、绊发雷、跳雷、定向雷、抛散雷、信号雷、反坦克雷等20多种,给战后中越两国边民的生活带来了许多困难和忧虑。随着中越两国关系正常 In the past war, more than 560 large and small mined areas were left on the border of more than 300 square kilometers between China and Vietnam. Most of these mines were laid for each other and were in various forms, with pressure and lightning, lightning and tripping, More than 20 kinds of lightning, directional mines, thunderstorms, signal mines and anti-tank mines have brought many difficulties and worries to the lives of the people of China and Vietnam after the war. With the normal relations between China and Vietnam