1.
Estimation of maximum horizontal principal stress magnitude from stress-induced well bore breakouts in the Cajon pass scientific research borehole
利用卡洪山口科学研究钻孔中应力引起的钻孔崩落估计最大水平主应力值
2.
sublevel blast-hole method
深孔分段崩落采矿法
3.
DETERMINATION OF THE ORIENTATION OF THE CRUSTAL STRESS !N CENTRAL HEBEI PLAIN BY BOREHOLE BREAKOUT METHOD
用孔壁崩落法测定冀中平原地区地壳应力方向
4.
MODEL TEST STUDY OF DEEP-HOLE INDUCED CAVING IN MINING ENVIRONMENT REGENERATION
开采环境再造深孔诱导崩落模型试验研究
5.
Serial Blasting Crate Tests Confirm Medium-length Hole Blasting Parameter of Non-pillar Sublevel Caving Method
无底柱分段崩落法中深孔爆破参数试验
6.
The Appling of Mining Method by Stage Avalanche and Shallow Bore Withhold Mine Coulping of XiaDian Gold Mine
夏甸金矿分段崩落与浅孔留矿耦合采矿方法的应用
7.
DETERMINING THE HEIGHT OF COLLAPSE AND FRACTURE ZONE WATER-TRANSMITTING IN MINED-OUT AREA BY MEANS OF BOREHOLE
利用钻孔确定采空区垮落带和导水裂隙带高度
8.
tap(ping) drill
螺丝孔钻，螺丝底孔钻
9.
The sorker was drilling.
此工人在用钻孔机钻孔。
10.
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
11.
kelly for well-drilling machiens
旋转钻孔,钻井机用
12.
A tool used for drilling.
钻头用于钻孔的工具
13.
sudden fall of a mass of earth,mud,etc
（土、泥等的）突然崩落
14.
sublevel undercut caving method
分段下部掏槽崩落开采
15.
induced block caving
阶段人工崩落开采法
16.
The snow sometimes slips, forming snowslides.
雪有时会滑落，造成雪崩。
17.
boring method (of pulp sampling)
（纸浆取样）钻孔法
18.
Drilling 50 yards deep,
钻孔至50码深处，