Frame retardant is a kind of chemical reagents to decrease the inflammability of materials, retard ignition and restrain the propagation of fire.是什么意思_Frame retardant is a kind of chemical reagents to decrease the inflammability of materials, retard ignition and restrain the propagation of fire.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句