最終更新日：2022/12/24
This angular difference is the local magnetic deviation (Figure C.2). Navigation systems normally work relative to True North and therefore must remove the local magnetic deviation.
編集履歴（0）
This angular difference is the local magnetic deviation (Figure C.2). Navigation systems normally work relative to True North and therefore must remove the local magnetic deviation.
DiQt（ディクト）
無料
★★★★★★★★★★
