短語(yǔ)詞組短語(yǔ)protective inorganic coating 無(wú)機(jī)塗層protective e coating 防護(hù)層thermal -protective e coating 隔熱層heat -protective coating 隔熱保護(hù)層optical protective coating 光學(xué)保護(hù)塗層;光保護(hù)塗層rubber base protective coating 橡膠基防護(hù)層antimercury protective coating [化工]防汞保護(hù)層optical fiber protective coating 光纖保護(hù)塗料 返回 protective coating