[机] 装砂心;
The paper presents the operational process of systematic coring, and sums up the experience of coring in the unconsolidated formation from analyzing each technical links in the coring.
文中介绍了系统取心的施工过程,通过详细分析取心的各个技术环节,总结出松散地层取心经验。
简答网 · 初中英语作文
简答网 · 双语娱乐资讯
简答网 · 高考英语