论文部分内容阅读
根据美国地质勘探局提供的最新数据,中国、印度和巴西是世界上三大主要的石墨生产国,几乎占据了世界90%的份额,年产量分别为72万t、12万t和7.56万t。
According to the latest data provided by the United States Geological Survey, China, India and Brazil are the world’s three major producers of graphite, accounting for almost 90% of the world’s total, with annual output of 720,000 t, 120,000 t and 75,600 t respectively .