例如，一道将金属切割成片的工艺可以产生一定的测量值，譬如每块金属板的长度、高度和重量。

For example, a process in which metal is cut into sheets yields certain measurements, such as each sheet's length, height and weight.

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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。

In addition, too much cutting speed and big nozzle height can cause and the increase of the poor incision width.

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所以，选用尽量小的喷嘴高度对提高切割速度和切割质量都是有益的，但是，喷嘴高度过低时可能会引起双弧现象。

So, choose as far as possible to improve the nozzle of small high cutting speed and cutting quality is useful, but the nozzle at low altitude may cause double arc phenomenon.

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