international magnetic character figure

例句：

1. 1. The internationalmagnetic character figure is used to identify thelocation of a magnetic field.
   国际磁性字符图用于识别磁场的位置。
2. 2. The internationalmagnetic character figure has beenused in many scientific experiments.
   国际磁性字符图在许多科学实验中被使用。
3. 3. The international magnetic character figure isimportant for communication and navigation.
   国际磁性字符图对于通信和导航非常重要。