synthetic filament短语¹⁴⁴⁹⁷²⁺² 基本例句 🌏合纤长丝；化纤长丝 The summary of take-up machine and its related automatic control system for synthetic filament is reviewed. Its technical level is analyzed and its development trend is described. 通过对化纤卷绕机及其自动控制系统的分析与研究，综述了现代卷绕装备的技术水平和发展趋势。 chemyq