He told us that in this giant crater, once a China clay mine, in Cornwall science and art meet in a living theatre of plants and people.
他是正在那个已经是陶瓷黏土矿的年夜坑里报告我们，康沃我科教战艺术正在动物战人类那个活死死的剧院里碰碰。
Serial blasting crater test method was used in underground medium and deep hole mining of Dahongshan copper mine for determining drilling and blasting parameters, and good results were obtained.
大红山铜矿地下中深孔采矿中，采用系列爆破漏斗试验方法确定中深孔采矿凿岩爆破参数，取得了较好的效果。
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