搜索 - 科创

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三是工频交变电磁场：例如在大功率电机、变压器以及输电线等附近的电磁场，它并不以电磁波形式向外辐射，但在近场区会产生严重的电磁干扰。

%91%E5%8A%A8%E6%9C%BA%E5%BE%AA%E7%8E%AF#%E7%94%B5%E6%B3%B5%E5%BE%AA%E7%8E%AF发动机，使用液氧/煤油作为推进剂，并使用无刷直流电机和高性能锂电池来驱动其推进剂泵

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