sulphurize (v.)使含有硫磺;使硫化
sul·phur·ize /ˈsəlf(j)əˌraɪz/ 及物動詞
Sul·phur·ize v. t. Chem. To combine or impregnate with sulphur or any of its compounds; as, to sulphurize caoutchouc in vulcanizing. ◄ ►