柯林斯词典thermoplastic /ˌθɜːməʊˈplæstɪk/ (thermoplastics) 1. N-COUNT Thermoplastic materials are types of plastic which becomes soft when they are heated and hard when they cool down. 热塑体的[usu N n] 返回 thermoplastic剑桥词典Thermoplastic substances can be melted and formed into shapes that become hard, and can then be melted again. 热塑（性）的 返回 thermoplastic