工人们开始干起活来，快速切割着 铁板。

The workers fell to and quickly cut the iron sheet.

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本文提出了一种数字电路反馈线的快速切割算法。

This paper presents an algorithm for the fast cutting of feedback lines in a digital circuit.

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正确使用数控等离子机进行高质量的快速切割，必须对切割工艺参数进行深刻地理解和掌握。

The correct use of CNC plasma machine quality fast cutting, must cut craft parameters of deep understanding and mastery.

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