Metal hydroxides like aluminium trihydroxide (ATH) or magnesium dihydroxide (MDH) are commonly used halogen-free flame retardants in polyolefins.是什么意思_Metal hydroxides like aluminium trihydroxide (ATH) or magnesium dihydroxide (MDH) are commonly used halogen-free flame retardants in polyolefins.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句