Method of calculating the adjusting resistance of frequency shift track circuit for normal state and shunting state is introduced.

本文介绍了移频轨道电路调整状态及分流状态调整电阻的计算方法。

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Conclusion It is an effective method for adjusting the strength, direction, range and frequency of laser to prevent bleeding, perforation and long term urethral stricture.

结论根据患者特点调控激光强度、照射方向、范围、次数是防止出血、穿孔和远期狭窄的有效手段。

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At last, advantages and disadvantages of these methods were analyzed and adjusting frequency method was discussed.

最后，分析了各种方法的优缺点，讨论了调整输出信号频率的方法。

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