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NDB窗口尖端放电间隙应根据( )调整。
分类: 导航专业业务
发布时间: 2023-11-19 23:03
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NDB窗口尖端放电间隙应根据( )调整。
A.A、设备类型
B.B、设备功率、工作环境
C.C、天线高度
D.D、地形条件
正确答案是B
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