此种微机控制701试验台，是采用功率步进电机驱动原操作阀进行试验的。
The microcomputer controlled test stand 701 adopts power stepping motor to drive the original operating valve to carry out tests.
此种微机控制701试验台，是采用功率步进电机驱动原操作阀进行试验的。
The microcomputer controlled test stand 701 adopts power stepping motor to drive the original operating valve to carry out tests.
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