... 变频管 convertor; frequency converter tube 变频机 frequency changer; frequency converter; frequency-changer 变频级 frequency converter stage; frequency translation stage; translating stage ...
The paper introduces a transformation by PLC and frequency-changer in the light of current lashing problem of drawing-oil tube cleaning machine in oil field enterprises.
本文针对油田企业中抽油管清污机中存在的冲击问题，用PLC、变频器等对其控制进行了改造。
2
Therefore has the necessity to carry on the discussion to in the frequencychanger application system disturbance question, promotes it further promotion application.
因此有必要对变频器应用系统中的干扰问题进行探讨，以促进其进一步的推广应用。
3
This paper describes the application of frequencychanger in filter, coal washer and GZG Feeder.