The systems comprise two engine-driven, electrically controlled, variable displacement hydraulic pumps and four large and four small hydraulically controlled, variable displacement hydraulic motors.
两个发动机驱动的电控液压泵（排量可变），四个大型和四个小型的液压控制马达（排量可变）。
When the setpoint of controlled variable varies, the controlling variable can be adjusted rapidly to maintain the dynamic stability of the welding process.
被控制量目标值变化时，控制量迅速随之调整，以保证焊接过程动态稳定。
When the setpoint of controlled variable varies, the controlling variable can be adjusted rapidly to maintain the dynamic stability of the welding process.
被控制量目标值变化时，控制量迅速随之调整，以保证焊接过程动态稳定。
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