melt flow rate短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 熔体流动速率 Therefore, PP resin is supposed to have a high strength and high melt flow rate, aimed at meeting the trend of reducing wall thickness of the parts and articles used in vehicles. 为实现轻量化、低成本,汽车塑料件壁厚有减薄的趋势,这要求PP具有高强度和高流动性。 chemyq