Thursday, May 2, 2024
Thursday, May 2, 2024
Thursday, May 2, 2024
Sunday, April 7, 2024
Sunday, April 7, 2024
Thursday, May 2, 2024
Monday, January 1, 2024
Tuesday, October 3, 2023
问题:材料的导热性和保暖性分别指什么,举例说明静止空气和水对于材料保暖性的影响。...
Sunday, April 7, 2024
Thursday, May 2, 2024
Thursday, November 9, 2023
问题:举例说明如何根据服装的用途决定相应的服用性能的重要性。...
Monday, September 18, 2023
Sunday, April 7, 2024
Monday, January 1, 2024
问题:从导热系数看,哪种纤维保暖性好,哪种纤维保暖性差,对于保暖性差的纤维怎样提高其制品的保暖性?...
Saturday, November 11, 2023
Thursday, May 2, 2024
Saturday, November 11, 2023
Monday, January 1, 2024
Thursday, May 2, 2024
Sunday, April 7, 2024