n.地磁氣；地磁氣學(xué)

The pill is always in the geomagnetism during flying. 彈體在空中飛行時(shí)一直處于這個(gè)大磁場中。

The paper discusses how a steady remanence affects the performance of an attitude determination and control system using geomagnetism. 討論了穩(wěn)態(tài)剩磁對(duì)地磁姿態(tài)確定與控制系統(tǒng)的性能的影響。

This site offers general information about the research of the Geomagnetism and Paleomagnetism Section of AGU. 這個(gè)網(wǎng)站提供了美國地球物理協(xié)會(huì)（AGU）地磁學(xué)和古地磁學(xué)分部的研究信息。

The earth is surrounded by the geomagnetism.The geomagnetism is stable and has some regulation. 地球磁場遍布整個(gè)地球，而且相對(duì)比較穩(wěn)定，并有一定的規(guī)律可循。

Gauthier began to carry out his geomagnetism observation in Xujiahui Catholic Church of Shanghai. Gauthier在上海徐家匯天主教堂開始了地磁觀測。