The precision manufacturing technology always demands a good surface finish at low cost.
精密制造技术总是要求一个好的表面光洁度低成本。
Strict product quality, precision, professional manufacturing technology to achieve advanced level in the same industry.
产品质量严谨、精密，专业制造技术达到同行业的先进水平。
Therefore, developing ultra-precision processing technology manufacturing technology development is the main objective of all countries.
因而，开发超精细加工技术是各国制造技术开展的次要目的。
Therefore, developing ultra-precision processing technology manufacturing technology development is the main objective of all countries.
因而，开发超精细加工技术是各国制造技术开展的次要目的。
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