core sample

By regression analysis, strength test equation can be obtained for core boring sampling method for brick masonry strength testing.

为评定已建和在建工程中砖砌体的抗压强度 ,用不同品种、不同强度等级的砂浆和砖砌筑砖砌体试件90个 ,分别钻芯取样和对砖砌体进行抗压强度试验 ,再经回归分析 ,可建立钻芯法检测砖砌体抗压强度测强方程式 ,并应用于工程检测

The dynamic triaxial shear test on the dynamic properties of the Xiaolangdi in situ siltized intercalations within core samples is performed.

对黄河小浪底工程左岸山体含泥化夹层的岩芯试样进行了动三轴试验研究。

Drills the Core Method of Sampling about the Improvement Semi-rigid Basic Unit the Suggestion

关于改进半刚性基层钻芯取样方法的建议

so every so often a sample is obtained with a coring bit.

因此时常要用取芯钻头取样。

The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit.

地质学家需要知道钻头已达到什么样的岩层了, 所以时时要用取钻芯头那样.

Selection of Drill Tool of Testing in Mixing Pile with Core Drilling Method

水泥土搅拌桩钻芯法检测钻具的选取

Study on drill bit for large diameter core drilling of deep hole in hard rock

硬岩深孔大口径取芯钻进的钻头研究

boring method (of pulp sampling)

（纸浆取样）钻孔法

THE COMPARISON BETWEEN SMALL-HOLE ROPE CORING AND COMMON CORING

小口径绳索取芯法与普通钻进取芯法比较

Drilling Fluid Technology Research on Mirabilite Mine Core Drilling in Guyuan of Ningxia;

宁夏固原芒硝矿取芯钻探钻井液技术研究

Researchers found the same telltale signature of drought in a deep-sea sediment core drilled from the Gulf of Oman.

研究人员在从阿曼海湾的深海沉积物中钻取的岩芯中发现了同样能说明问题的旱灾的迹象。

Main Causes and Countermeasures of Mud Cake in Wire-line Coring Drilling

绳索取芯钻探中泥皮产生的原因和对策

Construction Method of Coring for Pore Forming Based on Water Drilling of Super-diameter Rock Pile

超大直径岩石桩水钻取芯成孔的施工技术

Application of Core Drilling Collecting Rate to Evaluate Seam Gas Content and Distribution

应用钻探岩芯采取率评价煤层瓦斯含量及分布

A core was removed from this area so that the crack surfaces could be examined.

从这一区域取样芯，以便检验裂纹表面。

Application of Dry Drilling and Sampling in Landslip Prospecting

干钻成孔及取样在滑坡勘察中的应用

They drilled out samples of Martian earth

他们钻取了火星土壤的样品。

an annular drilling bit to allow core samples to be taken.

用来获取采样的一种环形钻头。

Analysis of Dependence Relation of GPR and Core-drilling Used in Pavement Thickness Detection

探地雷达与钻孔取芯在路面厚度检测中的相关分析

DEVELOPMENT AND TESTS OF LOW-TEMPERATURE ELECTROPLATED81/2" PDC CORING OIL BITS

低温电铸8(1/2)″复合片取芯油井钻头的研制与试验