A contrast test on ageing-resisting property of the polyethylene monofilamentand polyamide-6 with different brand was carried out by means of expos1ng to the sun.
采用日光曝晒法，对不同牌号的乙纶单丝和锦纶6单丝的耐老化性能进行了对比试验。
2
Nylon 6 is the early developed species of engineering plastics, its production is one of the largest in polyamide plastic.
尼龙6是工程塑料中开发最早的品种，是目前聚酰胺塑料中产量最大的品种之一（略）。
3
The cage which retains the cylindrical rollers of the cylindrical roller thrust bearing is an injection moulded glass fibre reinforced polyamide6, 6 cage (FIG 6).