吹氧炼钢法 basic oxygen steelmaking process: 氧气碱性转炉炼钢法oxygen steelmaking process: 氧气炼钢法oxygen-blown process: 氧气转炉炼钢法oxygen steelmaking: 氧气炼钢air-blown pneumatic steelmaking: 鼓风炼钢下载手机词典可随时随地查词查翻译