competent bed


  • 翻译:坚固岩层

同义词

1)competent bed,坚固岩层2)Yanzhou Coal Field,坚硬岩层3)Hard solid rock,厚坚硬岩层4)hard and massive strata,厚层坚硬岩层5)hard and thick stratum,坚硬厚层岩层6)competent rock,坚固稳定岩石

英汉例句

Application of hard rock drilling process at construction of Yanzhou Coal Field;

坚硬岩层钻进工艺在兖州矿区施工中的应用

热门矿业英语词汇