自动化生产线
https://www.bilibili.com/video/BV1HNbDeCE9j/
<iframe src="//player.bilibili.com/player.html?isOutside=true&aid=112787988678167&bvid=BV1HNbDeCE9j&cid=500001615666637&p=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"></iframe>
15028693258