Between 1982 and 1990,there was an increase of 309,800 ethnic Tibetans in Tibet,and the rate of natural population increase was 17.34 per thousand,2.64 perthousand points higher than that of the national level in the same period.是什么意思_Between 1982 and 1990,there was an increase of 309,800 ethnic Tibetans in Tibet,and the rate of natural population increase was 17.34 per thousand,2.64 perthousand points higher than that of the national level in the same period.在线翻译_英语_读音_用法_例句