true north 真北
magnetic north 磁北
compass deviation 罗盘偏差
navigation error 导航误差
1. The pilot had to adjust the compass for magnetic declination.
飞行员必须根据磁偏角调整指南针。
2. Magnetic declination varies depending on your location on Earth.
磁偏角随你在地球上的位置而变化。
3. Understanding magnetic declination is essential for accurate navigation.
理解磁偏角对于精确导航至关重要。
A: Did you check the magnetic declination before starting the trip?
A：出发前你检查过磁偏角了吗？
B: Yes, I adjusted my compass to ensure we are on the right track.
B：是的，我已经调整了指南针以确保我们没有走错路。
1) The angle between magnetic north and true north.
2) An astronomical and geophysical term used in navigation.
3) The difference between the direction a compass points and true north.
1. 磁北与真北之间的夹角
e.g.
The navigator accounted for magnetic declination.
航海员考虑到了磁偏角的影响。
noun
1. The angle between magnetic north and true north.