串级调速 meaning in English

cascade eed control
cascade speed control
concatenation control
speed adjustment by cascade control
speed adjustment by console control

Using and maintenance of blower system with cascade speed regulator
带串级调速装置的风机系统的使用与维修
Application of fuzzy - pi controller in dual loop serial speed varing system
控制器在双闭环串级调速系统中的应用
Modeling and simulating of new three - phase four - wire cascade control system
新型三相四线制串级调速系统的建模与仿真
General specification for cascade speed control assembly with semiconductor converter
半导体变流串级调速装置总技术条件
The technical reform on series stage adjusting speed of ventilator in linhuan coal mine
临涣煤矿东风井抽风机串级调速技术改造

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