A hydraulic variable speed drive system of shield disk cutter has been designed.
设计了盾构刀盘变转速液压驱动系统。
Variable speed hydraulic drive system is a new type energy saving system.
变转速液压驱动系统是一种新型的节能传动系统。
The model of hydraulic motor pump variable speed control system is built.
同时建立了该液压电机泵变速控制系统的数学模型。
Variable speed constant frequency generating system has been used in modern aircraft.
变速恒频电源系统已在现代飞机上使用。
Variable speed constant frequency generating system has been used in modern aircraft.
变速恒频电源系统已在现代飞机上使用。
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