目的探讨正弦调制电流对实验性肾功衰竭的治疗作用。
Objective To observe the effect of modulated frequency sinusoidal electrotherapy on experimental renal failure in rabbits.
分析测量误差与调制电流大小的关系，进而确定短距离测距的最佳实验条件。
The measurement error is found to decrease with the increase of the modulation current and this relation is applied to finding the optimum experimental condition for the short distance measurement.
前级采用电压单环调制方式，后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。
The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.
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