题目:
The horizontal angle between the magnetic meridian and the north-south line of the magnetic compass is().
A.deviation
B.variation
C.compass error
D.dip
答案:
参考答案:A
The horizontal angle between the magnetic meridian and the north-south line of the magnetic compass is().
A.deviation
B.variation
C.compass error
D.dip
参考答案:A