When crossing the magnetic equator the().

A . Flinders bar should be inverted B . Heeling magnet should be inverted C . The quadrantal spheres should be rotated 180° D . Flinders bar should be moved to the opposite side of the binnacle

时间:2022-09-18 20:59:16 所属题库:磁罗经与陀螺罗经的使用题库

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