The hole needed to be repaired with a dacron patch.

这个洞应该用涤纶补片进行修补的。

By the 1960s, Dupont already had produced materials like nylon and Dacron. The company wanted to develop a new fiber.

1960 年代， 杜邦已经产出尼龙和涤纶等材料。 该公发一种新纤维。