cnc milling machine短语¹⁴⁴⁹⁷²⁺² 基本例句 计算机数控铣床 Practice indicates the special CNC milling machine can process different series lance-tip products and the processing efficiency and product quality were improved. 实践表明：该专用机床能较全面地加工出各种系列的氧枪喷头产品，且加工效率和产品质量都得到明显的提高。 cnki