1.
Testing Study on Mechanism and Effect of Post-grouting at the Bottom of Super Large Bored Piles Foundation;
超大型钻孔灌注桩基础桩底后压浆机理及效果的实测研究
2.
A large tool for boring into the earth.
土螺钻，地螺钻一种用来钻土地的大型工具
3.
Technology preventing oozing slurry drilling fluid in large crossing drilling engineering
大型穿越钻进工程防冒浆钻井液技术
4.
Status and. updating of Model Daqing-130 drilling rigs
大庆-130型钻机的现状及改造更新
5.
Pump Pressure Analysis of the 3NB2200 High Efficiency Well Drilling Pump
3NB2200型大功率钻井泵的泵压分析研究
6.
Improvement on Daqing Ⅰ-130 & Ⅱ-130 Drilling Rigs
关于大庆Ⅰ-130与大庆Ⅱ-130型钻机的改进
7.
large solitary bee that lays eggs in tunnels bored into wood or plant stems.
大型独居蜜蜂，在木材或植物的茎干中钻洞产卵。
8.
Study of power supply on Daqing-130 drilling rig
大庆-130型钻机柴油机功率的利用和分析
9.
Structure Dynamic Analysis of Key Parts of Large-scale Piling Rig;
大型旋挖钻机关键部件的结构动力分析
10.
A new strongly inhibitive drilling fluid system and its application to Dagu-1 well
新型强抑制性钻井液体系在大古1井的应用
11.
a small bit that drills a first hole to guide a larger drill.
钻凿初洞来导引大钻头的一种小钻头。
12.
eggbeater PDC bit
打蛋器型PDC钻头
13.
Discussion on Problems on Daqing 1-130 & Ⅱ-130 Rigs and Their Accessories
谈大庆Ⅰ-130和大庆Ⅱ-130型钻机及其配套设备存在的问题
14.
The Optimization Analysis of Machine Body Cross Beam and Carriage of Milling and Drilling Machine Tool for Machining Large-Sized Workpiece with Overlength Plane;
大型工件超长平面铣钻专用机床床身大梁与拖板的优化分析
15.
Type selection of ф3.40m large diameter and deep hole drilling equipment for No 3 main tower pier of Wuhan Tianxingzhou great Yantze River bridge;
武汉天兴洲长江大桥3号主塔墩ф3.40m大直径深孔钻孔设备选型
16.
large wingless nocturnal grasshopper that burrows in loose soil along the United States Pacific coast.
大型舞池夜间活动的蝗虫，在美国太平洋海滨松软的泥土中钻洞。
17.
Methods: The root canal with root canal orifice burs and helical drilling bits were prepared in advance.
方法：采用根管口台阶状车针与螺旋型根管钻组合起来扩大根管。
18.
The Applicant of Reinforced Concrete Rotary-dig Drill Caisson Pile in Large-equipment Foundations
钢筋混凝土旋挖钻孔灌注长桩在大型设备基础中的应用