本文用信号分解和叠加的理论及方法，推导出一种适用于分析运算放大电路反馈特性的“分解方框图”，并通过实例介绍了相量图分析法。
In this paper, authors deduce a analysis scheme explaining feedback characteristic of a operation amplifier using the theory and method of signal composing and decomposing.
隧道监控量测及信息反馈技术是新奥法（NATM）原理修建隧道的主要内容之一。
The tunneling monitoring measurment and information feedback technology is one of the major content to construct tunnels using the principle of the new Austrain tunneling method (NATM).
隧道监控量测及信息反馈技术是新奥法（NATM）原理修建隧道的主要内容之一。
The tunneling monitoring measurment and information feedback technology is one of the major content to construct tunnels using the principle of the new Austrain tunneling method (NATM).
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