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气垫上的旋转系统(115 V, 50/60 Hz)
气垫上的旋转系统(230 V, 50/60 HZ)
激光反射传感器
数字计数器(230 V, 50/60 HZ)
Experiment: Moment of Inertia (230 V, 50/60 Hz)
Experiment: Moment of Inertia (115 V, 50/60 Hz)