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以下四项中,( )对减小抖动没用。
分类: 导航专业业务
发布时间: 2023-11-19 15:17
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以下四项中,( )对减小抖动没用。
A.A、尽量保持天线发射部份垂直
B.B、减小发射频率
C.C、按规范保护电磁环境
D.D、调整监控器功率告警门限
正确答案是D
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