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.
英
美
- 在伊利諾州Angonne市的一個(gè)廢棄煤礦的三年研究取得了成果，科學(xué)家們相信這些成果可以幫助改造把美國產(chǎn)煤區弄得傷痕累累的數千個(gè)舊煤場(chǎng)。
