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这些电路都分别由两个运算放大器和几个电阻所组成,不需外接电容,其输出波形良好。
Those waveform generators whose output waveforms are quite good are composed of a couple of operational amplifiers and several resistors without any capacitors.
从两个设计良好的能反映HPA轴功能的内分泌试验得出的结果显示,在许多抑郁症患者中其结果异常。
Results from 2 well-studied endocrinologic tests that reflect the function of the HPA axis have been found to be abnormal in many depressed patients.
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