介绍了大连九龙地磁监测中心建设过程中场地磁场梯度的跟踪测量情况。根据中国“地震及前兆数字观测技术规范”电磁部分的要求,在地磁台站建筑施工过程中,需要用质子旋进式磁力仪在施工现场对场地磁场背景进行监测。%The paper introduced the situation of dalian kowloon magnetic field gradient track detecting. according to the require of the technique criterion , in the building process of geomagnetic station , it have to use rotation magnetometer to monitor the background of magnetic field gradient.
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