[미국] 지하 대수층 내 지하수 고갈로 캘리포니아 일부 지역...
2014-04-13
by E&E Publishing LLC. Research by the U.S. Geological Survey shows that 1,200 square miles of land in a bowl shape around the river has sunk one foot per year from 2008 to 2010, the article reported. The...
글로벌물산업정보센터