What is the felting property of wool fibers? What are the causes of wool felting? What are the methods which used to felt-resist treatments of wool fabrics ? 什么是羊毛纤维的毡缩性?引起羊毛毡缩性的原因有哪些?常见的羊毛织物防缩整理方法有哪些?
【简答题】T ask 1: Answer the questions based on the following memo. T o: All employees Memo From: John Smith, Administration O f fice, Manager Date: July 14, 2014 Subject: Fitness Center Th e boar d o f direct...