人机系统设计概念是人性化设计的前提。
The design conception of man-machine system is the precondition of the humanized design.
本学科的人机系统设计理论，就是科学地利用三个要素间的有机联系来寻求系统的最佳参数。
The design 's theory is that scientific would like to find the best parameters by using the organic links between the system.
给无人机设计一个能够确保它安全有效处理偶然因素的系统需要十年或更长时间。
Designing systems that ensure they respond in a safe and effective way may take a decade or more.
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