magnet compass

• 磁罗盘

magnet compass的用法和样例：

例句

1. The creatures have their own inbuilt magnetic compass.
   这些生物有它们内在的磁罗盘。
2. GREENLAND was discovered without the use of magnetic compasses.
   格陵兰岛被人类发现没有借助于磁罗盘。