光纤电流和磁场传感器 Optical Fiber Current and Magnetic Field Sensor
在室温条件下测量电流和磁场的大小对载流子浓度和迁移率测量结果的影响。
Under room temperature conditions, the influence of measuring current and magnetic field on carrier concentration and mobility results are studied too.
磁场唯一的来源就是电荷和电流。
The only magnetism comes from electric charges and currents.
NASA的伽利略号太空船在1996年和1997年低空飞越这颗木星的第二大卫星，他们发现木卫四的磁场在不断变化，这意味着存在电流。
NASA's Galileo spacecraft did a fly-by of Jupiter's second largest moon in 1996 and 1997 and found that Callisto's magnetic field varied, indicating currents.
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