轻质耐火砖

1.light-weightrefractorybrick  

轻的英语翻译：

gently; light; not important

质的英语翻译：

character; matter; nature; pawn; pledge; quality; question; simple
【医】 mass; massa; quality; substance; substantia
【经】 guilder

耐火砖的英语翻译：

firebrick
【化】 fire brick; fire clay brick; refractory brick