Because magnetic memory signal is faint, selection of magnetic sensor is very important.
磁记忆信号非常微弱，磁敏传感器的选择十分重要。
The thesis also analyses working principle of the magnetic short circuited ring, recommends structural parameters in magnetic short circuited ring and its selection principle.
分析了磁短路环的工作原理，给出了磁短路环设计中的结构参数和材料的选用原则。
The selection of base value is critical to the geomagnetic diurnal variation correction in Marine magnetic survey.
地磁日变基值的选取是海洋磁力测量地磁日变改正的重要内容。
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