In this paper the concept of IAM is introduced and the method Used for analyzing H. F. small signal amplifier is discussed. The expressions of gain and input impedance of amplifier are given.
本文简要地介绍了不定导纳矩阵的基本概念，讨论了应用于高频小信号放大器的分析方法，给出了应用实例，并得出放大器的增益和输入阻抗表达式。
The technological process of desulphurization with H. P. F. ammonia method and its reaction mechanism are discussed, the main advantages concluded through the contrast.
主要探讨了H . P. F氨法脱硫的工艺流程及反应机理，通过对比说明该方法的优越性。
Method: Using electromyography at bedside recording motor nerve conduction, needle electromyography, H-reflex and F-wave.
方法床旁肌电图检查，观察患者运动神经传导，针极肌电图，H反射及F波。
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