Three years of research at an abandoned coal mine in Argonne,Illinois,have resulted in findings that scientists believe can help reclaim thousands of mine disposal sites that scar the coal-richregions of the United States.

• 在伊利诺州Angonne市的一个废弃煤矿的三年研究取得了成果，科学家们相信这些成果可以帮助改造把美国产煤区弄得伤痕累累的数千个旧煤场。