Coulaux是什么意思laux在线翻译读音例句-播音员主持人资格考试2023年4月20日发(作者：美味的英文单词)河北工程大学外文文献翻译 Underground Mining Most present-day mining in Europe occurs under 2000 to 4000 ft of overburden, as more easily mined coal depos...