題組內容

七、請就圖例之說明文字,加以翻譯

PRESENT MOVEMENT: 270/09 KT

SOLID LINE - FORECAST TRACK

DASHED LINE - HISTORY TRACK

RED - 64-KT RADIUS

YELLOW - 50-KT RADIUS

GREEN - 34-KT RADIUS

依照正常航路,何時會進入7級風暴風半徑?