The time variation of the cosmicrayflux is one of crucial problems in the field of cosmicray physics, solar geophysics and astrophysics, etc.
宇宙线强度随时间的变化，是宇宙线物理、太阳地球物理和天体物理等交叉学科中的重要问题之一。
2
The cosmicrayflux has some changes due to the solar modulation and other factors, and maybe induce some variability of the Earth's climate.
宇宙线受太阳调制和其它因素影响，流强存在着变化，这种变化可能会引起地球气候的某些变化。
3
However, it lacked significance of statistical to study the time variation of the cosmicray with even high energy before, because the cosmicrayflux with even high energy is very low.