elastic fibreiˈlæstikˈfaibə短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 弹性纤维 The effect of the chemical structure and the micro- phase separation degree of melt- spun polyurethane elastic fibre on mechanical property was studied in this paper. 研究熔纺氨纶的化学结构和微相分离程度对其力学性能的影响。 chemyq