The results showed the fire retardance of PP was affected not only by flame retarding agent used,but also by melt flow ability of the PP system.是什么意思_The results showed the fire retardance of PP was affected not only by flame retarding agent used,but also by melt flow ability of the PP system.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句