14-20 铁路货车平均静载重 AVERAGE DEAD WEIGHT OF FREIGHT CRAS 单位: 吨/车 (tn/car) -------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------- 年 份 | 合 计 | | | | | | | # 煤 | # 石 油 | # 钢 铁 | # 矿 物 性 | # 粮 食 | | | | | 建筑材料 | | Total | Coal | Petroleum | Steel and | Mineral | Grain Year | | | | Iron | Building | | | | | | Materials | ------------+-----------------+---------------+---------------+---------------+---------------+--------------- 1952 | 28.9 32.5 27.3 27.8 32.5 32.0 1957 | 34.7 38.3 35.0 37.2 38.8 39.2 1962 | 39.0 42.3 39.5 41.4 43.0 40.5 1965 | 39.8 44.6 40.4 42.6 44.0 43.7 1970 | 42.5 46.9 42.8 43.5 47.2 45.5 1975 | 45.4 49.4 44.3 46.3 48.6 47.8 1978 | 46.9 50.6 46.3 47.5 49.9 50.3 1980 | 48.0 52.5 46.3 49.0 52.6 54.2 1985 | 51.6 55.7 46.2 51.9 55.3 54.6 | 1986 | 52.2 56.2 46.3 52.8 56.0 55.3 1987 | 53.2 57.2 46.5 53.6 56.7 56.6 1988 | 54.1 57.9 46.7 54.2 57.4 57.3 1989 | 54.8 58.3 46.8 54.6 57.6 57.8 1990 | 55.0 58.5 47.0 55.0 57.9 58.3 | 1991 | 55.2 58.7 46.7 55.6 58.0 58.5 1992 | 55.8 59.1 47.1 56.4 58.3 58.9 1993 | 56.1 59.3 47.4 57.1 58.5 59.1 1994 | 56.6 59.6 47.6 57.8 59.0 59.3 1995 | 56.8 59.9 47.6 58.2 59.2 59.4 --------------------------------------------------------------------------------------------------------------