isogonic line是什么意思 isogonic line怎么读
isogonic line的英文翻译是什么意思，词典释义与在线翻译
Noun:- an imaginary line connecting points on the Earth's surface where the magnetic declination is the same
isogonic line的用法和样例
- The course which will cut each meridian at the same angle is termed a rhumb line.
与每一子午线相交成同一角度的航向叫恒向线。 - All planar structures are represented by a strike line and dip angle.
一切平面构造均可用向线和倾斜角来表示。
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