development opening

矿业工程专业词汇D ... development machine 掘进机 development opening 准备巷道 development plan 开拓计划 ...

采矿专业英语大全 - 豆丁网 ... 开采顺序 mining sequence 开拓井巷 development opening 开拓矿量 development reserve ...

请帮忙翻... ... 优化组合 optimization grouping or regrouping 开拓进取 development opening 桃李满园 have pupils everywhere ...