- multilevel control system
- 多级: multistage; notching; multis ...
- 控制系统: navar; control system; opera ...
- 多级控制系统 分级控制系统: multi-levelcontrolsystem
- 等级控制系统: hierarchical control system
- 分级控制系统: hierarchical control system; hierarchy control system; individual control system; multi-level control system
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