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