本文介绍的是以地面磁法测量为主，于1979年在仓上覆盖区，以追索三山岛金矿构造为目的地质填图工作。
The geological mapping aimed at tracing the structures of the Sanshandao gold deposit was carried out in the Cangshang Covered Area in 1979, with the ground magnetic survey being the essential work.
介绍了一例用助磁法测量大型变压器低压侧直流电阻的接线、仪器、测试过程和测试结果，讨论了助磁法运用于实际应注意的一些问题。
The paper introduces the saturable magnetic circuit method to measure the DC resistance of low voltage winding of large-size transformer with a practical application.
第三章对此磁致偏振特性测量系统的搭建及工作原理（消光法）、影响测量结果的因素及解决方法、实验操作步骤等作了说明。
So the third chapter focuses on the measuring system. The operating principle (Light extinction method), the factors which influence the result and the resolvent to avoid them are explained.
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