短語詞組短語biaxial symmetry orientation encoding 雙軸對稱方向編碼successive biaxial orientation 連續(xù)雙軸取向biaxial orientation polypropylene 雙向拉伸聚丙烯biaxial orientation stretching machine [塑料]雙向拉伸機biaxial orientation pet 雙軸取向petbiaxial orientation stretching 雙向拉伸 返回 biaxial orientation