串级 meaning in English

tandem; cascade
◇串级电动机 concatenated motor; 串级发电机 cascade generator

Intelligent double - loop cascade pid regulate controller
双回路串级pid调节仪
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

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