Study on spectrum-based fatigue life direct calculation for spots of deep-water semi-submerged drilling unit;
深水半潜式钻井平台节点疲劳寿命谱分析研究；
Drilling unit has the functions including rapid falling, slow work-feeding and quick feeding back to improve working efficiency.
钻孔单元具有空行程快进，慢速工进和快速回程功能，提高工作效率。
The drilling unit is made of a very strong structure containing the single drilling spindles which run in perfectly ground bronze cylinders (sleeves).
钻头单元由一个强有力的包含单一钻锭的结构组成，钻定运行在完美的青铜圆柱（袖套）面上。
The compressibility and the theory of Mohr-Coulomb Intensity limit equilibrium of soil, provides the basis for the self-rescue principle of rodless drilling unit.
土体的可压缩性和土的摩尔·库伦强度极限平衡理论为无钻杆钻具自救机理提供了理论依据。
Mechanical design of stabilized platform unit is one of the key techniques in the rotary steering drilling tool.
稳定平台单元机械系统的设计是旋转导向钻井工具的关键和难点之一。
The storage unit of measurement while drilling system is one of the important parts of rotary steerable drilling tool.
井下随钻测量系统的存储单元是调制式旋转导向钻井系统的关键技术之一。
Supervisors in this unit group supervise and co-ordinate the activities of workers engaged in drilling for oil or gas, operating service rigs, or providing oil and gas well services.
本单元组监督元监督和协调从事钻探石油或天然气，运营服务的钻机，或提供石油和天然气井技术服务的工人的活动。
And the operators are improved by establishing the Order Exchange Unit and Order Exchange List to satisfy the need of integer coding in drilling path optimization.
通过建立序交换元和序交换集对算法的操作算子进行改进，满足钻削路径优化问题中整数编码的需要。
This unit group includes excavating, grading, paving, drilling and blasting contractors who own and operate their own business.
本单元组包括拥有和经营自己生意的挖掘，分级，铺路，钻井和爆破承建商。
UNIT PRICES include for drilling mortices or forming mortices in the structure by whatever means necessary including diamond drilling, abortive holes etc.
单价包括在结构中钻孔或开榫眼，不管用什么方法（包括金刚石钻孔、磨孔等）。
Drillers in this unit group operate mobile drilling machines to bore blast holes in open-pit mines and quarries and to bore holes for blasting and for building foundations at construction sites.
该项中的钻探工人操作移动钻孔机实施露天矿和采石场的钻孔爆破以及建筑工地的建筑物基础设施的爆破工作。
The drilling bar is clamped by a holder, supported by a guiding unit, and the feeding motion is realized by the saddle of the lathe.
钻杆由钻杆夹头夹持，由钻杆导向装置支撑引导，由车床大拖板带动实现进给运动。
Drilling rig efficiency unit per month (DREupm) is a key indicator to display drilling productivity.
钻探台月效率是考核钻探施工生产水平的主要指标。
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。
In production, the production unit can inquire reservoir sensitivity evaluation result, fluid formula during entering about drilling and production engineering for field application.
在生产中，生产单位可以在数据库中查询到各油田、区块储层敏感性评价结果，钻井、采油工程入井流体配方，以供现场应用。
Replacing diesel by diesel-natural gas as the fuel for drilling engine unit in natural gas field is one of the effective ways for improving economic benefit and reducing development cost.
天然气气田钻井发动机机组燃料由柴油改为柴油-天然气双燃料，是提高经济效益、降低开发成本的有效途径之一。
This paper presents a method to select PDC bits. This method USES a correlation between shear strength and drilling cost estimation per unit length.
介绍了利用剪切强度和单位进尺钻井成本的关系来进行PD C钻头选型的新方法。
Supervisors in this unit group supervise and co-ordinate the activities of workers engaged in drilling for oil or gas, operating service rigs, or providing oil and gas well services.
石油和天然气钻探和服务主管主管负责监督和协调从事石油或天然气钻探工作人员的相关工作，经营服务平台，或提供石油和天然气方面的服务。
A member of a French infantry unit, formerly composed of Algerian recruits, characterized by colorful uniforms and precision drilling.
法国的一种轻步兵，原由阿尔及利亚募集组成，以严格的训练和穿华丽服装著称。
This paper discusses the breakeven point engineering volume, break even point unit price, profit and operating safety ratio in the contract of drilling engineering.
探讨了钻井工程承包中盈亏平衡点工程量、平衡点单价、利润及经营安全率等问题。
As the drilling style, this system introduces fly drilling technology whose central device is exact speed measuring unit to achieve dynamic-drilling on-line.
制孔方式方面采用以精密测速单元为核心的位移跟随技术，实现在线动态制孔。
The finite model of the derrick and drilling platform connecting unit is built and the natural vibration frequency and the corresponding vibration mode of it are given here.
建立了该钻机井架与钻台结合体固有振动特性理论分析的有限元模型并给出了其固有振动频率结果和相应的主振型。
It's very important for some petroleum machinery(e. g. drilling rig and pumping unit) to carry on reliability analysis and design of the system of the narrow V type belt drive.
开展窄V带传动系统可靠性分析与设计对于提高钻机、抽油机等石油钻采机械的质量和效益具有重要意义。
A member of a French infantry unit, formerly composed of Algerian recruits, characterized by colorful uniforms and precision drilling.
佐阿夫兵法国的一种轻步兵，原由阿尔及利亚募集组成，以严格的训练和穿华丽服装著称。
This unit group includes excavating, grading, paving, drilling and blasting contractors who own and operate their own business.
该项包括那些拥有和经营自己企业的承包商，涉及的范围有挖掘，分级，铺砌，凿岩爆破这些方面。
The method discussed in this paper refers to the cut and consolidated fill method in which drilling is done by jumbo, broken ore moved by LHD unit and the filler transported by pipeline.
该采矿法指用台车凿岩、铲运机出矿和管道输送充填料的胶结充填采矿法。
The method discussed in this paper refers to the cut and consolidated fill method in which drilling is done by jumbo, broken ore moved by LHD unit and the filler transported by pipeline.
该采矿法指用台车凿岩、铲运机出矿和管道输送充填料的胶结充填采矿法。
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