The technique of primary drilling and blasting is an effective way to solve the problem of crushing, caving and transportation.
该方法的初采钻爆技术是解决顶煤破碎与顺利放出的有效途径之一。
Petroleum drilling, called "the pioneer of petroleum industry", is one of the primary engineering during petroleum exploration and development.
石油钻井工程是进行石油天然气资源勘探开发的主要工程，被誉为“石油工业的火车头”。
The technology of hole trajectory primary sect ion is the key of drilling in re entry horizontal Wells.
侧钻水平井轨迹起始段工艺技术，是侧钻水平井钻井工艺的关键技术。
HAZOP analysis method of offshore drilling platform is primary studied.
对海上钻井平台HAZOP分析进行了初步的研究。
Through monitoring and measuring of drilling indices of marble and primary ore body of Daye Iron Mine, a rational relationship between unit energy consumption and drilling speed is established.
对大冶铁矿大理岩和原生矿体的钻孔指标进行监测，建立合理单耗与钻进速度关系式。
With the primary research and development of navy salvage drilling simulation system, the authors propose a drilling simulation architecture based on HLA and the information flow of the system.
基于作者的初步研究和实践，结合海军防险救生模拟训练系统的前期研制开发，给出了基于HLA的训练仿真系统的体系结构和信息流程。
Based on the principle of HAZOP analysis and in accordance with the characteristic of offshore drilling engineering, HAZOP analysis method of offshore drilling platform is primary studied.
针对海上钻井工程的特点，运用HAZOP分析的基本原理，对海上钻井平台HAZOP分析进行了初步的研究。
Thus it will guarantee the primary placer gold sampling and reduce the Labour intensity of workers, in order to raise the drilling efficiency.
从而能保证取出原生矿样，并降低工人的劳动强度，实现钻进的高效率。
Distinguishing the primary factors from environmental influential factors affecting logging-while-drilling resistivity is a perquisite to environmental correction.
准确地识别随钻电阻率测井环境影响因素的主次是有针对性地进行环境影响校正的前提。
Distinguishing the primary factors from environmental influential factors affecting logging-while-drilling resistivity is a perquisite to environmental correction.
准确地识别随钻电阻率测井环境影响因素的主次是有针对性地进行环境影响校正的前提。
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