Passengers will ultimately be able to speed from the Italian city of Milan to Zurich in less than three hours and further north into Germany, cutting the journey time by an hour.
旅客们最终将可能把从意大利城市米兰到苏黎世的旅程缩短到三小时以内，而且能进一步北上德国，将路程时间缩短整整一个小时。
Cutting speed only in the surface roughness not required when it is not important.
切削速度只有在对表面粗糙度不做要求的时候才不重要。
In addition, too much cutting speed and big nozzle height can cause and the increase of the poor incision width.
另外，过大的切割速度和过大的喷嘴高度都会引起切口上下宽度差的增加。
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