1990
乱気流 タービュランス Turbulence 1997
1990
1960
1980
1950
1990
1950
2000
1990
1950
1950
1980
1990
1960
1980
1970
1960
1980
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