The mining, oil extraction, and gas extraction industries form yet another group.
从事采矿、采油和采气行业的焊工组成另外一个群体。
Hence, strata control theory can be used in gas extraction and control of coal and gas outburst.
因此，可以利用岩层控制理论指导瓦斯抽采和预防煤与瓦斯突出的发生。
Japan's fear is that gas extraction in Chunxiao could siphon off gas from Japan's side of the field.
日本担心中方在春晓气田的天然气开采会同时吸走日方一侧的天然气。
Deaths in jobs related to oil and gas extraction jumped from 72 victims in 2002 to 125 in 2006, a 70 percent increase.
石气开采相关工作岗位死亡人数由2002年的72人增加到了2006年的125人，增幅多大70%。
Infection zones of coal mining are favorable place to coalbed methane recovery in ground or gas extraction in underground.
煤矿采动影响区是地面煤层气开发或井下瓦斯抽放的有利部位。
Abstract: To master the distribution laws of gas flow fields is the premise of designing reasonable project for goaf gas extraction.
摘要掌握采空区瓦斯分布规律，是制定合理的抽采采空区瓦斯技术方案的前提。
"Pressure relief antireflective" technology is to improve the soft low-permeability coal seam gas extraction rate in an effective way.
“卸压增透”技术是提高松软低透气性煤层瓦斯抽采率的有效途径。
The effectiveness of inducers, vortex pumps, and special pump designs for gas extraction for up to 40 percent gas by volume are discussed.
按体积计最多40%的气体的诱导剂，涡旋泵，和特殊的泵的设计，用于气体提取的有效性进行了讨论。
Gas disasters seriously influence the coal production safety in China coal mines. Gas extraction is the basic way to prevent gas disasters.
瓦斯灾害严重影响我国煤矿生产的安全，瓦斯抽放是防止瓦斯灾害事故的根本途径。
Practices have proved that effective gas extraction can improve ventilation management, gas control and reliability of work safety in the mine.
实践证明，通过对矿井瓦斯的有效抽采，可以使矿井的通风管理、瓦斯治理工作稳步提高，矿井安全可靠度增强。
Test results of surface gas extraction technology from boreholes in the goaf in Zhangbei Coal Mine, Huainan Mining Group are introduced in the paper.
本文介绍了淮南矿区张北矿地面钻孔抽采采空区瓦斯技术的试验成果。
ProPublica collaborated with journalism students to produce a music video called "the Fracking Song", part of an investigation into the impact of sale-gas extraction.
ProPublica与新闻系学生合作了一部音乐剧“追踪溯源歌”，用作一个有关页岩天然气提取所造成的影响的调查片段。
Though more research into the damage shale-gas extraction may do to the environment is needed, there is no doubt that the extraction of coal already harms the environment a lot.
尽管需要对提取破环的页岩气做更多的研究，对环境同样有破坏作用，煤的开采无疑已对环境造成了伤害。
Hydraudic Fracturing plays an important role in increasing production of with Low permeability reservoir and it also is the prime approach to raising the rate of oil-gas extraction.
水力压裂在低渗油气藏增产措施中占有相当大的比重，而且是提高油气采收率的主要方法。
This paper introduces the main gas extraction and drainage techniques used in Yangquan Coal Mine at present and the application scope and deterministic accordance of these techniques.
主要介绍了阳泉煤矿目前主要的瓦斯抽放技术和方法及其适应范围和确定依据。
Sequentially, the effective radius of gas extraction and the effective pressure-released radius of pressure-released borehole are calculated by the borehole destroying radius expressions.
所得出的钻孔破坏半径的表达式可用于不同条件下计算瓦斯排放钻孔的有效排放半径和卸压钻孔的有效卸压半径。
And in some sanctuaries, the extraction of oil and gas is allowed.
而在另一些地区，石油和天然气的开采也是准许的。
The researchers used water and an ultrasonic extraction process, followed by gas chromatography-mass spectrometry to quantify the amount of cocaine in more than 230 bills collected in 17 cities.
研究人员从17个城市收集到230张纸币样本，并使用水和超声波提取方法，再加上气相色谱分析-质谱法对样本进行测试。
In contrast, commercial fishing, tourism, and the extraction of oil and gas will all be forbidden.
与此形成对照的是，商业捕鱼、旅游以及石油和天然气开采都将明令禁止。
Improved extraction technology and high gas prices mean the boom here shows little sign of slowing.
改良的采气技术和高昂的气价意味着这里的繁荣没有减缓的迹象。
But the extraction of shale gas is controversial.
不过，页岩气开采是存有争议的。
Designs exist for nuclear powered ramjets that could fly indefinitely in the atmospheres of the gas giants — this might prove a viable means of keeping an extraction factory aloft.
设计的存在使核动力的喷气机无限期地在这个巨大的气体行星的大气层内飞行-这可以证明保持一个悬在高处的提炼工厂的可行的方法。
Mass transfer processes, including gas absorption, distillation, extraction, adsorption, drying.
传质过程，包括气体吸收，蒸馏，萃取，吸附，干燥。
A maximum entropy model of feature extraction for the gas disaster information is established, with the training algorithm of the maximum entropy presented.
以最大熵原理为基础，建立了最大熵瓦斯灾害信息特征提取模型，提出了最大熵模型的参数训练算法。
After each extraction, we purified the resulting gas and passed the xenon into hohenberg 's mass spectrometer, which indicated the number of atoms of each isotope present.
每一次萃取后，我们把得到的气体纯化，再将氙通入霍恩·柏格的质谱仪，测量出其中所含各种同位素的原子数量。
The sugar content in the hydrolysate of cocoanut shell is determined by treating samples containing sugar with derivatization extraction method and capillary gas chromatography.
采用衍生化—萃取法处理含糖样品，毛细管气相色谱测定糖的方法，测定了椰子壳水解液中糖的含量。
We have also established an accute and effective calibrating system-gas chromatography and solid phase micro extraction (SPME).
并且还建立了一套准确而有效的气相色谱和固相微萃取定标系统。
We have also established an accute and effective calibrating system-gas chromatography and solid phase micro extraction (SPME).
并且还建立了一套准确而有效的气相色谱和固相微萃取定标系统。
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