用光电容积描记器检测误差信号，用电螺管作为液压机构的推动器。
The error signal is detected by the transmittance photoelectric plethysmograph. An electromagnetic solenoid is adopted for use as the hydraulic actuator.
用光电容积描记器检测误差信号，用电螺管作为液压机构的推动器。
The error signal is detected by the transmittance photoelectric plethysmograph. An electromagnetic solenoid is adopted for use as the hydraulic actuator.
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