Prime meridian
01
本初子午線, グリニッジ子午線
an imaginary line that goes from the North Pole to the South Pole, which helps to measure how far east or west a place is on Earth
例
The prime meridian is crucial for global navigation and timekeeping.
本初子午線は、グローバルな航海と時間管理に不可欠です。
Greenwich Mean Time is based on the prime meridian.
グリニッジ標準時は本初子午線に基づいています。
