80.the frequency changing relay is out of order. It can not change frequencies.
频率转换继电器故障，不能转换频率。
| 单词 | frequency change |
| 例句 |
原声例句
航海英语听力 80.the frequency changing relay is out of order. It can not change frequencies. 频率转换继电器故障，不能转换频率。 VOA常速英语_美洲 Did a Runway close, did the instrument landing system close, did a frequency change? 跑道关闭了吗，仪表着陆系统关闭了吗，频率改变了吗？ ICAO民航英语 885. Is there a frequency change at this compulsory reporting point? 885. 该强制报告点的频率是否有变化？ |
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