echo frequency是什么意思 echo frequency在线中文翻译

echo frequency

echo frequency 词典解释

1. 回波频率
   ...Echo? 回波 | Echo frequency? 回波频率 | Echo height? 回波高度...
2. 回波
   ...动态范围 Dynamic radiography | Echo 回波 Echo frequency | 回波频率 Echo height...
3. 回波频次
   ...earthing pole 接天极 | Echo frequency 回波频次 | Echo height 回波下度...

echo frequency