刀跳 meaning in English

chatter

I saw a man jumped and knifed in the street ! horrible ! dangerous times we live in
我看见了一个男的手里拿着一把刀跳上大街！太恐怖了！现在真是危险时期！
The function of optimization cutting : it can connected with the defect inspection machine , it can reach cutting a strip glass and optimization cutting of the big defect glass ribbon and can also fit the middle tool jump and automatically change the size of the longitudinal cutting bridges so that reach optimization cutting
优化切裁功能：可与缺陷检验装置连接，自动实现大缺陷玻璃板抽条切裁与优化切裁并配合纵切机实现中间刀跳刀与自动变尺优化切裁功能。