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1)  modulation with blade passage frequency
叶片通道频率调制
2)  blade passing frequency
叶片通过频率
1.
By means of time-frequency analysis,the time-frequency structures centered on 550 Hz and 2 200 Hz were identified;the blade passing frequency of the first 3 compressor rotors,and some of their sum-frequency and difference frequency signals,were identified too.
通过时频分析,从压力信号中辨识出了以550 Hz和2200 Hz为中心的时频结构;辨识出了压气机前3级转子叶片通过频率信号及它们的一些和频、差频信号。
3)  frequency modulation blade
调频叶片
1.
The operation reliability of the frequency modulation blades of th e turbine has a relation to the safety operation of the turbine.
汽轮机调频叶片工作的可靠性直接关系到汽轮机的安全运行,介绍了ACS4。
4)  blade frequency
叶片频率
例句>>
5)  channel frequency
通道频率
例句>>
6)  unturned blade
不调频叶片
补充资料：频率计量(见时间频率计量)


频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology

　　口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
　　
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条