The plastic nuclear track detector CR-39 is exposed for about 10 hours in balloon observation in 1982.The relative abundance (E>3.6 GeV/n) of the galactic cosmic rays is obtained and compared the result with the satellite data.

• 在1982年的气球飞行中；球载塑料核径迹探测器CR-39在气球高度飞行了10小时.；测得E>3