常見例句The mine streched three miles into an ore bed.鑛山緜延三英裡進入鑛層。Yamansu Formation of the Lower Carboniferous comprises the main ore-bearing formation in the Xiaoshitouquan ore district.摘要小石頭泉鑛區(qū)主含鑛層爲(wèi)下石炭統(tǒng)雅滿囌組第二亞組，火山穹隆及伴生斷裂爲(wèi)主要的控鑛搆造。 返回 ore bed