What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）<br>A:Quadrantal spheres<br>B:Heeling magnets<br>C:Athwartships magnets<br>D:Fore-and-aft magnets

What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）
A:Quadrantal spheres
B:Heeling magnets
C:Athwartships magnets
D:Fore-and-aft magnets

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10252937】个 (题库试题定时更新)