实现煤矿运输一键操作，无人值守。
随着一键操作，只需打开它，并在几秒钟内开始测试。
With one button operation, simply turn it on and begin testing in seconds.
对我来讲，按键的实用性是要给我们的最终用户一键操作，而且更多的是一键单程操作。
To me the key to usability is to give the end user one way to do something, and pretty much one way only.
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