In the larger interstices, this fluid has the ability to limit circulation.在较大的间隙内, 此液体有限制流通的性能.Only connected interstices can act as elementary conduits within the formation.在地层内只有连通的空隙才能起导水通道的作用.Secondary interstices d...
Bolivia returned to democratic rule in 1982, after a series of military governments.在经历了数届军人政府后，玻利维亚于 1982 年恢复了民主政权。Bolivia has been mercifully free of large-scale, drug-related violence.幸运的是，玻利维亚没有发生过与毒品有关的大规模暴力事件。Many ...