已选分类
工学纺织科学与工程
问答题结合高技术纤维发展的历史和现状，说明高技术纤维今后的发展趋势。
问答题简述PAN在预氧化过程中发生的反应。
问答题要使柔性链高聚物纤维达到高性能化必须考虑哪些方面，并分别说明其原因。
问答题分别描述液晶纺丝和普通干湿法纺丝的工艺过程，并分析各自的特点。
问答题Indicate the yarn tension when spinning in a ring spinning machine.
问答题Which are the principles (stages) for yarn manufacturing?
问答题Indicate the process of air-jet spinning.
问答题列出典型的涤棉混纺精梳纱的纺纱工艺流程及各道机器设备名称，并说明各工序的主要作用。
问答题Indicate the basic requirement for roller drafting.
问答题Indicate the main types of delivery which produce packages.
问答题Which are the popular materials for the manufacture of spun yarn?
问答题Which are the pre-processes for cotton, wool and ramie?
问答题Indicate the relationship between tpi(turns per inch) and TM (twist multiple).
问答题论述从原料到细纱影响纱线条干均匀度的因素。
问答题Which machines are combined in a opening line?
问答题Indicate the processing of opening, blending and cleaning for cotton.
问答题Indicate the process of rotor spinning.
问答题分析毛精梳机工艺参数对毛条质量及制成率的影响（至少4项工艺参数）？
问答题Indicate the processing of a flat card.
问答题简述细纱强力的构成，并从原料到纱线论述影响棉纱强力的因素。