“信号机”造句

信号机是红色时,火车必须停驶.
The train must stop when the signal's red.

本文还详细地介绍了一套智能交通信号机系统的整体设计.
The paper also introduces detail a set of whole design Intelligent Traffic Signal System.

随着科学技术的发展,信号机及其检测技术也在不断发展.
The signal machine and its testing technique are developed continuously along with the science and technology.

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