In order to control and reduce the visual fatigue, ensure the transportation safety the locomotive engineer should be examined the vision periodically.
建议定期开展视觉检查，控制和减少视觉疲劳发生，保障行车安全。
Once an engineer determines the need for machine vision, the next challenge is to assemble the building blocks of the system.
一旦工程师决定选用一个机器视觉系统，下一个问题将是如何安装这个系统的各个组件。
Once an engineer determines the need for machine vision, the next challenge is to assemble the building blocks of the system.
一旦工程师决定选用一个机器视觉系统，下一个问题将是如何安装这个系统的各个组件。
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