magnetic compass [航] [水运] 磁罗经 ; [航] [水运] 磁罗盘 ; 磁罗径 ; 罗盘仪
gyro magnetic compass 陀螺磁罗盘
magnetic compass pilot 磁罗经导航 ; 磁罗经自动舵 ; 磁罗经驾驶仪 ; 磁罗盘驾驶器
magnetic compass table 磁罗经自差表 ; 自差表 ; 磁罗盘偏差表
steering magnetic compass 操舵磁罗经 ; 驾驶磁罗经
gyro-magnetic compass 电磁罗经 ; 陀螺磁罗经
dry magnetic compass card 干罗经盘
gyrostabilized magnetic compass 陀螺稳定磁罗经 ; 陀螺磁罗盘
Western Europeans had also developed and put into use the magnetic compass, which helped when clouds obliterated both the Sun and the stars.
西欧人也已经发明并且使用了磁罗盘，当云彩同时遮住了太阳和星星时，它就能起作用。
"They also have a magnetic compass that enables them to navigate thousands of kilometres, even at night," says Robson.
“它们还有磁性罗盘使它们能够航行成千上万里，即使在晚上。”罗布森说。
A cell in the eye may be worth two in the beak, at least when it comes to a migratory bird's magnetic compass.
鸟的眼睛中的细胞可能会是鸟嘴里细胞价值的两倍，至少当谈到候鸟的磁性罗盘来说是这样。
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