1990
乱気流 タービュランス Turbulence 1997
1990
2000
1950
1980
1980
1990
1990
1970
1960
1960
1960
1930
1990
1990
1950
2010
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
1990