他发下守贞禁欲的誓言。He took a vow of chastity and celibacy.他违背了他安贫乐道的誓言。He had broken his vow of poverty.我结婚时许下誓言，并一直信守。I took my marriage vows and kept them....
密闭 鼓风炉 的熔炼过程极其复杂,工艺结构庞大.Imperial Smelting Furnace ( ISF ) smelting process is a quite complex process.铅团在鼓风炉中被溶解.The lead paste is smelted in a blast furnace.焦炭最初是在鼓风炉里作为助燃剂使用.Coke is used predominantly as a fuel relucta...