Well your guess is as good as mine, i believe this topic should just be commented on for humor sake, nothing more, inconceivable at this time!

或许你的答案和我是一样的。 我相信这个话题只是开开玩笑的，不为别的，因为这在现在是不可想象的！

youdao

For the sake of discovering the malfunction of train's bearing in time and to guarantee the security of the train, the research of on-line malfunction diagnosis become especially important.

为了能及时发现列车轴承故障诊断，保证行车安全，故障在线诊断的研究显得尤为重要。

youdao