Modulation is used to control or throttle flow in response to an external control signal.

调制用于根据外部控制信号对流量进行控制或调节。

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This article mainly introduces several kinds of common external signal interference in measuring and automatic control system, and the method on checking during installation and debugging.

本文主要介绍在检测、自动控制系统中常见的几类外部信号干扰及其在安装、调试过程中的排查方法。

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It also discusses some key techniques such as the design of ECL circuit, high speed signal processing and external trigger control.

并对ECL电路、高速信号及外部触发控制等关键技术进行了详细的讨论。

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