求翻译：摘要：本文简要分析了数控机床高速化、高精度化、复合化、智能化、开放化、网络化、多轴化、绿色化等发展趋势，并提出了我国数控机床发展中存在的一些问题。是什么意思？

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Abstract: This article has analyzed the numerical control engine bed high speed briefly, the high accuracy, the recombine, the intellectualization, the opening, the network, multiple spindle trends of development and so on, the green, and proposed in our country numerical control engine bed developm

Summary: this article provides a brief analysis of CNC machine tool high speed, high precision, complex, intelligent, open, networked, multiaxial, greening of trends, and made some outstanding issues in the development of CNC machine tools in China.

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