For example earthquake inspection station magnetic variation curve record and so on.

例如地震监测站的地磁变化曲线的记录等。

Compass heading or compass course, before correction for magnetic deviation or magnetic variation.

罗盘航向或罗盘航线。未修正磁偏转或磁变。

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。

The problems to be solved in transplanting the automatic modification program of magnetic variation and the methods for solving them are discussed.

作者指出了要实现磁偏角自动修正程序移植要解决的问题以及解决这一问题的途径。

The crust magnetic field, or lithospheric magnetic field, can be deduced by subtracting the main field, variation field and its induced counterpart from the total field.

从全球磁场减去地核主磁场和变化磁场及其感应磁场后，就得到岩石圈磁场，又称地壳磁场，或地磁异常。