柯林斯詞典Coal Measures 1. N-PLURAL a series of coal-bearing rocks formed in the upper Carboniferous period; the uppermost series of the Carboniferous system 在上石炭紀(jì)期形成的煤系; 石炭紀(jì)體系中最重要的系列 (習(xí)語(yǔ)the Coal Measures) 返回 coal measures