frequency variation
短语词组
- frequency y variation 频率变动
- frequency of variation 变异频率
- frequency stabilization variation method 频率变化法
- frequency instantaneous variation 高频瞬变
- high frequency climatic variation 高频气候变化
- frequency stabilization variation 频率变化
- high -frequency instantaneous variation 高频瞬变
- power -frequency component variation 工频变化量
- variable - frequency speed variation 变频调速 返回 frequency variation