33. 某船由甲地(L1 25° 10.3′ N,λ1121° 44.9′ E)..-阿摩線上測驗
1F rabbit25647 高三上 (2017/10/11)
題解:DL = 246 * Cos 70° = 84.1’,p = 246 * Sin 70° = 231.1’,L2 = 25°10.3' + 84.1’ = 26°34.4'N, Lm = (25°10.3' + 26°34.4') / 2 =25.9°,Dλ = 231.1’ * Sec 25.9° = 257’, λ2 = 121°44.9' + 257’ = 126°01.8'。 |