The wire-line coring tool of HSQ serial has kept up the technical features of conventional placer drills and derived the advanced structure from steel cable fishing tool for inner barrel.
HSQ系列绳索取心钻具，既保持了现用砂钻钻进的工艺特点，又发挥了钢绳打捞内管技术的方便性。
2
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。
3
Once the probe has been hauled up, a coring device will be lowered down the borehole to take samples of the lake floor sediment.