【化】 aromatic polyamide fibre
fragrant; good; virtuous
a group of things with common features; clan; family; race; strain
【化】 alkaline earths; family; group; odd series; periodic family; sub-group
subgroup
【医】 group; race; series; tribe
【化】 Nailon; Nefalon; Niplon; Novodur; nylenka; nylon; nymo; Perlon
polyamide fibre