数控加工程序编制是数控机床使用中的关键。

Part programming is the crux in the use of NC machine tools.

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采用UG软件对摩托车油箱进行三维造型和数控加工程序编制，详细介绍了摩托车油箱拉伸模凹模的加工工艺。

The 3d modeling and CNC program of motor fuel tank were engaged by UG software. The processing technology of dies cavity for motor fuel tank was introduced.

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