全国现有铁路运营里程 6 7万ｋｍ。国家自 1 998年开始 ,五年内拟投资 2 50 0亿元 ,按此发展进度 2 0 0 2年铁路运营里程将突破 7万ｋｍ。每年新线投产约 1 0 0 0ｋｍ ,钢轨消耗每年约 90万ｔ,其中大修换轨约 60万ｔ。钢轨的发展方向是重型化、强韧化、纯净化和高精度化。根据 The country’s existing railway operation mileage is 607,000 km. Since 1998, the country intends to invest 250 billion yuan in five years, according to which the railway mileage will exceed 70,000 km in 2002. Each year the new line is put into operation for about 1 0 0 km and the rail consumption is about 900,000 t per year, of which about 600,000 t is undergoing major overhauls. Rail development direction is heavy, toughening, pure and high precision. according to