1990
乱気流 タービュランス Turbulence 1997
1990
2000
2010
1950
1960
1990
1980
2020
1990
1990
1990
1990
1990
1960
1960
1980
1950
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990
1990