Which are the pre-processes for cotton, wool and ramie？

_____ orders of 1000 pieces or more we _____ a special discount of 4%.

A company should only enter segments in which it can create superior customer value and gain advantages over its competitors.

The executive branch consists of 15 departments and the department heads form the , which is the major source of advice and assistance to the President.

Indicate the processes of cotton spinning system.

Which are the principles (stages) for yarn manufacturing？

Which are the popular materials for the manufacture of spun yarn？

用下列原料按给定重量比例进行混条，要求最后得到单重为20克/米的混合条子。请进行混条设计(写出混条步骤，计算每道混条的牵伸倍数，喂入根数及出条重量)。

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。

何谓毛条制造？写出典型的毛条制造工艺流程及各道机器名称。其中直型精梳机在生产中有哪些工艺参数需要调整，简析它们对精梳质量和制成率的影响。(至少4个)