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世界产钢大国 (China, Japan and the U.S. retained the first, second and third places in the ranking of the world's top steel producing countries in 1997. 1997 年在世界产钢大国排序中,中国、日本和美国依然位列第一、第二和第三名。) |
world 's top steel producing countries: 2 phrases in 1 subject |
Metallurgy | 2 |