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- secular magnetic variation 长期磁变
- The secular magnetic field variation in the south Atlantic anomaly (SAA) regionis studied by using the international geomagnetic reference field (1990s) model. 利用国际地磁参考场模型IGRF90，分析了南大西洋异常（SAA）区磁场变化的特征，计算了低轨卫星轨道积分粒子辐射通量及其随年代的变化。
- Two-dimensional model by magnetotelluric data has been obtained and compared with the results by magnetic variation analysis. 这一结果与由大地电磁资料计算得到的二维模型剖面是一致的。
- Curves of equal magnetic variation 等磁差曲线图
- Annual change of magnetic variation 磁变年差
- correction of magnetic variation 磁偏角改正
- aunual change of magnetic variation 年差
- A secular law, rule, or code of law. 世俗法规世俗的法律、制度或法典
- An electromagnet (as on a tape recorder) that converts electrical variations into magnetic variations that can be stored on a surface a later retrieved. 能够把电的变化转变成磁性变化并储存在表面备用的电磁石。
- The choir sings both sacred and secular music. 唱诗班既唱圣乐也唱世俗歌曲。
- Dalian is a magnet for tourists. 大连是吸引游客的地方。
- This paper introduces the formation of magnetic field, polarity reversal, secular variation and the use of geomagnetic polarity reversal or susceptibility in stratigraphic study. 摘要本文介绍了地球磁场的成因、极性变化以及运用极性倒转划分对比地层和指示环境。
- Secular music refers to music which is not religious. 世俗音乐是指非宗教的音乐。
- This disco is a magnet for young people. 这家迪斯科舞厅经常吸引大批年轻的顾客。
- A magnet attracts both iron and steel. 磁铁吸铁也吸钢。
- Certain metals are attracted to a magnet. 某些金属会受磁石的吸引。
- Secular music was flatly prohibited. 世俗音乐是绝对禁止的。
- It shows the presence of a magnetic field. 这表明有磁场存在。
- Secular factors are more long term in nature. 长期因素却是长期的。
- North magnetic poles repel (each other). 磁北极与磁北极互相排斥。
