该仪器主要用于检测煤矿井下环境气体中的甲烷浓度，运用了热催化原理。
This instrument is used with the principle of catalytic incineration to measure the concentration of methane in coal mine.
特殊的井下环境要求井下测井仪器的尺寸小、可靠性高而且具有高速数据传输能力。
Special downhole environment requires small and reliable downhole logging tools with faster data transmission speed.
模拟研究了井下环境N 80钢在油田采出液(主要是CO2水溶液)中的静态和动态腐蚀行为。
It is an analog study of static and dynamic analog study of corrosion action of N80 steel in the extraction liquid (mainly CO2 water solution) of oil field under condition of well.
探地雷达技术(GPR)在地下金属矿中应用日益广泛，然而复杂的井下环境时常影响雷达的测试效果。
Ground penetrating radar (GPR) has been used widely in the underground metal mines, and the results of surveying are often influenced by the complicated subsurface environment.
环境仿真系统采用物理模拟及半实物仿真等多种手段，实现了不同地质条件、不同井深的井下环境的仿真。
The ESS adopts multi-means such as physical simulation and half-real object simulation and can be used to simulate in-well environment of various geologic and various depth well.
同时由于煤矿井下环境复杂，给生产安全带来了巨大的挑战，并给井下工作人员的生命造成了极大的威胁。
For the mine's environment complex, bring tremendous security challenges to the produces, and threat to the life of the staff.
此系统能实现现场无线组网、井下环境实时监测、执行机构的遥控、布防网络中继器以及井下环境分析等功能。
This system could achieve the function of real-time monitoring the environment in mine, remote controlling the equipment of placement, place the Repeaters of meshwork, historical parameters analysis.
煤矿井下炮采工作面是一个非常复杂的灾害环境系统，又由于时间、空间的限制，使得炮采工作面爆破作业引发事故的可能性增加。
The coal face of blasting mine in underground coal mine is a very complicated system of disaster environment, the spatiotemporal limit increases the accident probability of blasting operations.
对辽上矿区金矿通风系统进行网络解算，完善了通风系统，改善了井下的作业环境。
According to the ventilation network calculation of Liaoshang mine area, the ventilation system and the working condition under the mine were improved.
提出了一种基于DSP的井下电视(DHV)视频采集系统及数据压缩方法，适合较高温度下的工作环境。
This paper develops a DSP - based Downhole Video (DHV) acquisition system and the approach to compress the data, which is suitable in high temperature conditions.
阐述了我国煤矿井下的腐蚀环境和采煤设备的防护现状。
This paper describes the corrosion surroundings of Chinese underground collieries and the present protection state of coal mining equipment.
井下的环境监测和人员定位是矿井安全管理中最为重要的环节。
In security management in mine, underground environment monitor and person localization are the most important.
给出了该算法进行定位的原理，并结合井下复杂环境中的电波传播模型来实现该算法。
We elaborate the theory of localization algorithms, and implement the algorithm combined with radio wave propagation model in underground complex environment.
对井下复杂环境中无线电波传播模型方程中的环境因子矩阵，结合了实际测量值对其进行了修正。
It was modified combined with their actual measured values that the environmental factors in radio wave propagation model equation matrix of underground complex environment.
我们的井下马达广泛应用于各种钻探环境，如石油、气、矿和水井。
Our downhole motors are widely used in various drilling conditions, like oil, gas, mineral and water well.
在这个背景下，本文就井下复杂环境中无线传感器网络的节点定位进行了深入研究。
So this thesis deeply researched on node localization in wireless sensor networks (WSN) for underground complex environment.
解决了井下空间狭窄、流体粘度大、工作温度偏高、环境压力偏大等测量难题。
It solved the measurement problem that is little under-well space, high liquid viscosity and high operation temperature.
与智能压裂液相结合的纳米材料可作为高灵敏度传感器用于井下压力、温度等恶劣环境中。
Nanomaterials combined with smart fluids can be used as extremely sensitive sensors for pressure, temperature, and stress downhole under harsh conditions.
不管是陆地还是海上，因井下设备处在强腐蚀环境下，往往需要经常修井。
Wells in the Middle East, both onshore and offshore, often require workover because of the highly corrosive environment to which the downhole equipment is subjected.
深井下的环境是呈高酸性的，即意味着在这样的环境中有大量的氢存在。
The environment is highly acidic in deep wells. "That means there's a lot of hydrogen in the environment, " he said.
煤矿井下的特殊环境限制了现有的以光纤或视频电缆为传输介质的矿井视频监视系统的推广应用。
The special circumstance of mine limits the abroad application of existing mine video supervising system which is based on fiber medium and video cable medium.
结论井下特殊的作业环境和作业内容可能是引起井下hp矿工血浆ALD水平升高的原因。
Conclusion the special operational environment and content were the factors that possibly increased plasma ALD levels of HP miners in the pit.
在矿山井下复杂的环境中，人因事故已成为矿山事故的主流。
In the case of complicated circumstance in coal mine, accidents caused by people have become main stream.
目前电力线扩频载波通信在井下复杂电网环境中的应用研究还是一个空白。
There is no any application or research in power line spread-spectrum communication on the complex power line environment in mine.
本研究项目就是针对煤矿特点研究本质安全型可编程序控制器，采取本质安全技术，使其适应煤矿井下恶劣环境条件；
According to the mine characteristics this research project made a study of intrinsically safety programmable controller, which is adaptive to atrocious environment and condition of mine underground;
由于油管在井下所处环境十分复杂，腐蚀影响因素众多，因此产生的腐蚀现象千奇百怪，不胜枚举。
Because the surroundings in which the downhole tubing is placed are very complex and there are many corrosive factors, the corrosion phenomena are various and too numerous to enumerate.
数值仿真与实验结果表明，该算法具有较高定位精度，适合于井下复杂多变的通信环境。
Results of numerical simulation and experimentation indicate that this algorithm is of high accuracy of location and it is adapt to complex communication condition under coal mine.
矿山井下排水系统因其特殊的工作环境，对其设备有着严格的要求，在自动化排水系统中，闸阀的可控性是关键性问题。
For the special work environment, the drainage system under mine has strict requirement to its device. In the Auto-drainage system, the controllability of shut-off valve is critical issue.
兼具谐波治理功能，可滤除电网中的高次谐波，净化井下电网环境，保证设备稳定运行。
And harmonic management function, can filter HHG in the grid, purify power grid environment, guarantee the equipment and stable operation.
兼具谐波治理功能，可滤除电网中的高次谐波，净化井下电网环境，保证设备稳定运行。
And harmonic management function, can filter HHG in the grid, purify power grid environment, guarantee the equipment and stable operation.
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