在航行的途中，他一路建立起了许多叫做磁力计的装置，以检测大气上层的电流状况。
As he travelled, he set up instruments called magnetometers to measure electric currents in the upper atmosphere.
介绍磁力式皮带速度检测器的作用、性能和使用效果。
In this paper purpose performance and effect of magnetic belt conveyors and introduced.
所述方法包括：通过 所述传感器检测所述磁铁的磁感应强度，判断出所述磁力杆和所述测量杆的相对位置；
The method includes: detecting magnetic induction of the magnet via the sensor to judge relative position of the magnetic rod and the measuring rod;
所述方法包括：通过 所述传感器检测所述磁铁的磁感应强度，判断出所述磁力杆和所述测量杆的相对位置；
The method includes: detecting magnetic induction of the magnet via the sensor to judge relative position of the magnetic rod and the measuring rod;
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