90年代以来 ,世界天然气消费量稳步增加 ,到 1 999年已占全球能源消费总量的近 1 / 4。90年代以来 ,世界天然气消费量以平均每年 1 %的幅度递增 ,到 1 999年已达 1 9.5 34亿吨石油当量 ,在初级能源消费中所占的比重由 1 990年的 2 1 .7%上升到 2 3.2 %。在此期间 ,电力工业的天 Since the 1990s, the consumption of natural gas in the world has steadily increased. By the year 999, it has accounted for nearly 1/4 of the world’s total energy consumption. Since the 1990s, the world’s natural gas consumption has increased by an average of 1% per annum, and by 1 999 it Up to 195.34 billion tons of oil equivalent, the share of primary energy consumption increased from 2.17% in 1993 to 23.2%. During this period, the days of the power industry