The feature extraction of gas disaster is studied.
对瓦斯灾害信息特征提取进行了研究。
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。
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。
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。
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。
But the extraction of shale gas is controversial.
不过，页岩气开采是存有争议的。
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。
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。
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。
There are many lands which have been made very dirty through war and conflict, through vice and depravity and through extraction of and pollution through oil, gas, coal, and other 'raw materials'.
有许多土地已经由于战争和冲突，恶性和堕落，石油天然气煤矿以及其它原生能源的大量攫取和污染，变得非常脏污。
Extraction method of landfill gas was introduced based on practice experience.
并根据实践经验介绍了抽取填埋气体的方法。
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。
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。
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 gas extraction effects is related to negative pressure of suction.
顶板瓦斯高抽巷的抽采效果与抽放负压直接相关。
A method was established for determination of a 7% d-cyphenothrin insecticidal aerosol using an ultrasound extraction pretreatment followed by gas chromatography (GC).
建立了7%右旋苯氰菊酯杀虫烟雾剂的超声萃取前处理方法和气相色谱分析方法。
The volatile components were extracted from leaves of Indocalamus latifolius by simultaneous distillation and extraction, and analyzed by gas chromatography-mass spectrum (GC-MS).
采用同时蒸馏萃取装置提取箬竹叶的挥发性成分，然后经气相色谱-质谱联用技术对挥发性成分进行分离鉴定。
Cholesterol oxidation products are determined in whole milk powder by gas chromatography, including of extraction of lipid and sample purification.
利用该法测定了全脂奶粉中微量胆固醇氧化物的含量，同时对样品中粗脂类的提取及净化过程作了研究。
This technique is developed on the basis of the Schaefer method (FRG) with the addition of a hydrogen extraction device to a conventional gas chromatography.
本方法是在西德谢菲尔方法的基础上，自制氢抽提装置，采用一般气相色谱仪组装成的一套比较成熟的分析方法。
A gas chromatographic method for the determination of methamidophos pesticide residues in the Allium Chinense was established by means of micro chemistry and solid phase extraction techniques.
采用微量化学方法和固相萃取技术，建立了气相色谱法简单、快速、准确地测定荞头中甲胺磷农药残留量的方法。
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。
Hollow fiber membranes with good gas permeability can be obtained after the extraction of the paraffin oil and stretching to a small extension.
将石蜡油提取掉后稍加拉伸即可得到透气性很好的微孔中空纤维渗透膜。
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。
The influence of motionless mixer on gas holdup and dispersed phase holdup in gas-agitating (extraction) tower was studied.
在气体搅拌萃取塔中，研究了静态混合器对气含率、滞液率的影响。
The sources of fluorine-containing gas are analyzed from the extraction of WPA, flash evaporation cooling of slurry and concentration system.
阐述湿法磷酸生产的萃取分解、萃取料浆闪蒸冷却及浓缩系统含氟气体的产生过程；
It is considered that the gas pre-extraction measure in coal bed is one of the most effective methods to prevent the gas disaster.
目前，本煤层瓦斯预抽放措施仍然被认为是预防瓦斯灾害最有效的方法之一。
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。
The value of the gas extraction individually is far lower than the coal value.
瓦斯单独开采的价值远远低于煤炭本身。
The value of the gas extraction individually is far lower than the coal value.
瓦斯单独开采的价值远远低于煤炭本身。
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