Earth's magnetic field is composition of International Geomagnetic Reference field and magnetic anomaly field.
地球磁场由国际地磁参考场和磁力异常场叠合建立。
The data of international geomagnetic reference field are widely used in China.
国际地磁参考场资料在我国得到广泛应用。
The data of international geomagnetic reference field are widely used in China.
国际地磁参考场资料在我国得到广泛应用。
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