最后，采用本文的工艺手段和精度控制措施，进行了一系列齿轮精锻试验，并进行了小批量的生摘要产。

At last, with the improved forming process and accuracy control operation in this thesis, series of experiments of precision gear forging have been implemented.

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针对焊管生产线工程中一些由土建设计、施工带来的直接影响设备安装精度、周期等问题，提出了相应的控制措施。

It raises the relevant control measures aimed to effect units installation accuracy, cycle problem, etc. caused by civil design and construction during welded pipe production line project.

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