UPVC

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++UPVC, uPVC /ˌjuː piː viː ˈsiː/ noun [uncountable]  (unplasticized polyvinyl chloride) a type of plastic, used especially to make window frames 未增塑聚氯乙烯 UPVC double-glazed windows 未增塑聚氯乙烯双层玻璃窗

UPVC nounChinese  

UPVC
UPVC , uPVC /ˌjuː piː viː ˈsiː/ noun [uncountable]
(unplasticized polyvinyl chloride) a type of plastic, used especially to make window frames:
    UPVC double-glazed windows

uPVCBrE /ˌjuː ˌpiː ˌviː ˈsiː/ 🔊NAmE /ˌjuː ˌpiː ˌviː ˈsiː/ 🔊 noun [uncountable] the abbreviation for 'unplasticized polyvinyl chloride' (a strong plastic used to make window frames and pipes) 硬质聚氯乙烯（全写为 unplasticized polyvinyl chloride，用以制作窗框和管子的坚固塑料）