学者们对努比亚砂岩含水层寿命的估计相差悬疏，从一百年到一千年不等。
Estimates for the life of the Nubian sandstone aquifer range from a century to a millennium.
根据穿越处地貌及地层特性决定将努比亚砂岩作为定向钻穿越的围岩。
Based on the features of geomorphology and strata in the crossing area, the Nubia sandstone is selected to be the surrounding rock.
世界上最大的努比亚砂岩蓄水系统，位于撒哈拉沙漠东部地区下面，跨越利比亚、乍得、苏丹和埃及。
The Nubian Sandstone Aquifer System, the world's largest, is located under the eastern part of the Sahara desert and spans the political boundaries of Libya, Chad, Sudan and Egypt.
在可钻性、成孔性及粗颗粒可携带性等方面对努比亚砂岩进行了分析，认为将其作为穿越地层是可行的。
This paper analyzes the drillability, hole-making and carry of coarse grain concerning the Nubia sandstone, and concludes that it is suitable to be the crossing strata.
利比亚人称他们将停止使用西北撒哈拉水系统和努比亚砂岩水系统（世界上最大的化石含水层，为埃及、乍得、苏丹共同拥有）的水来种植小麦。
The Libyans say they may stop growing wheat using water from the NWSAS and the Nubian sandstone aquifer system, the world’s largest fossil aquifer, which they share with Egypt, Chad and Sudan.
科学家估计，有相当于200年的水流沿尼罗河的砂岩含水层努比亚。
Scientists estimate that there is an equivalent of 200 years of water flowing down the Nile in the Nubian Sandstone Aquifer.
科学家估计，有相当于200年的水流沿尼罗河的砂岩含水层努比亚。
Scientists estimate that there is an equivalent of 200 years of water flowing down the Nile in the Nubian Sandstone Aquifer.
应用推荐