... dual service 双源(不同源)供电 dual solvent-25 process 双溶剂-25流程(高浓缩铀核燃料后处理流程，一循环用TBP，二、三循环用MIBK) dual-speed motor 双速电动机 ...
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To reduce energy consumption, the original plant circulating pump motor was changed to dual-speed motors.
为了节能降耗，将原循环水泵电机改为双速电机。
Combined with the structural parameters of TAO649D traction motor, the mathematic model of the DC motor is built and its speed and current dual-closed-loop system is designed.
结合TAO649D机车牵引电机的结构参数，首先建立了该直流电机的数学模型，设计了该电机的转速，电流双闭环系统。
Simulation results indicate that the clutch engaging speed can be accurately controlled by using DC servo motor dual closed loop control system. The start quality of Vehicle was improved.
结果表明：直流伺服电机驱动离合器，能很好地控制离合器的结合速度，提高车辆起步品质。
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