该类矿床的成矿时代多集中在晚太古代末至早元古代初期,并且具有全球性.This type of graphite deposits were formend in the Late Archaean to Early Proterozoic.冀东迁西洒河桥是太古代麻粒岩相变质岩系广泛出露的地区.Archaean era granulite facies metamorphite series are extensively outcrop...
On the floor of the basins lie deserts, lakes and swamps.这几个盆地的底部有沙漠 、 湖泊和沼泽.He was fined for shoplifting but only received his just deserts.他冒充顾客进商店行窃被罚款,那只不过是他应得的惩罚。What is the difference between moral deserts and enti...