It pointed out that motor torque may be increased by double electric capacity phase-shift circuit.
指出，采用双电容移相线路可增大电机力矩。
Line equalizer control method, and integrating circuit, frequency shift circuit and transmission device.
线路均衡器控制方法，积分电路，频移电路和传输装置。
Anoiher signal with 90 degree delay is obtained by phase shift circuit. The accurate and stable circle counting is done by a reversible counter.
通过移相电路获得相差90度的另一路信号，然后用可逆计数器实现稳定准确的周期计数。
Anoiher signal with 90 degree delay is obtained by phase shift circuit. The accurate and stable circle counting is done by a reversible counter.
通过移相电路获得相差90度的另一路信号，然后用可逆计数器实现稳定准确的周期计数。
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