查询词典 liquefied petroleum gas

With the rapid development of our country's photochemistry industry, the liquified petroleum gas is widely used. However, because of its unique flammable, explosive, virulent physic-chemical properties, it causes a series of burning, detonating accident which has occurred in domestic and foreign, which has caused the giant personnel casualty and property damage. Thus, it has been bad influence to the society. Therefore, it is necessary for the liquified petroleum gas store place to carry on the safety assessment and go on the grave accident sequential analysis research, regarding the effective science forecast, prevention and control significant accident occurrence, so it can reduce or avoid this kind of disaster accidents as far as possible, which has the important theory value and the practice significance for guarantee the liquified petroleum gas store place's safe operation.

随着我国石油化学工业的迅速发展，以及液化石油气的广泛使用，其特有的易燃、易爆、有毒的物理化学性质以及在国内外发生的一系列燃烧、爆炸等事故造成巨大的人员伤亡和财产损失，造成了不良的社会影响，因此，有必要对液化石油气储存场所进行安全评价和重大事故后果的分析研究，对于有效科学预测、预防、控制重大事故的发生，减少或尽量避免此类灾难事故的发生，确保液化石油气储存场所的安全运行，具有重要的理论价值和实践意义。

Central rate in holdings of major shareholders of listed companies, China Petroleum and Natural Gas Group, to 12.09 yuan at high prices holdings 6,000 million A shares of China Petroleum becomes all the more difficult to understand the practice, because in its holdings of on September 22 of the China Petroleum and H shares closed at just 8.67 Hong Kong dollars, even without considering the exchange rate factors, the China National Petroleum A shares than the H shares a premium of nearly 40%, clearly not a rational business investment decisions.

中央率的上市公司，中国石油天然气集团公司，主要股东持股高价持有6000万股中国石油A股一十二点〇九元变得更加难以理解的做法，因为在9月其持有的中国石油H股收于22只八点六七港元，即使不考虑汇率因素，中国石油A股比H股近40％的溢价，显然不是一个理性企业投资决策。

LOSA-1 is an assistant for increasing production of Light olefine with FCC.The result of its comnercial application in No.2 heavy oil FCC unit in Luoyang company shows that it can raise propylene content in liquefied gas.When its equilibrium addition is about 200kg/d with the proportion to fresh catalyst volume of 5%,the propylne content in liquefied gas can keep at 42%～45%. FCC;propylene;assistant LOSA-1;commercial application

LOSA-1助剂是岳阳三生化工公司和国内科研院所开发的增产轻烯烃FCC助催化剂，该剂在中国石化洛阳分公司2号重油催化裂化装置工业应用的结果表明，LOSA-1助剂具有较强的提高液化气中丙烯浓度的性能，当其平衡加入量控制在200kg/d左右、对新鲜催化剂加入比例为5%左右时，液化气中的丙烯体积浓度能够保持在42%～45%。

Institute of Petroleum Exploration and Development,PetroChina,Lanzhou 730020,ChinaEarthquakes occured overmuch and seismites developed in southwestern Qaidam basin. The seismites made serious seismic-related soft-sediment deformation structures,including pillow structure,ball structure,pillow bed,liquefied sand-stone vein,liquefied mudstone vein,micro-fault,micro-fracture,micro corrugated lamination and sandstone fungus.

研究表明，柴达木盆地西南地区地震活动强烈，深、浅层均发现一系列与古地震有关的震积岩，形成一系列软沉积物变形构造，主要包括震积砂枕、砂球构造、枕状层、液化砂泥岩脉、层内错断、地裂缝、微褶皱纹理、沙侵蘑菇等。

When the gas flux is constant, the ratio of reduced resistance is improved with the increase of the water stream velocity. However, the relationship between the gas flux and the ratio of reduced resistance is more complex. When the water stream velocity is constant, if the gas flux is small in contrast, the effectiveness of reduced resistance is not obvious. But when the gas flux increased, the jetted gas will form """"archform"""" which will augment the shape resistance. In this condition, resistance could not be reduced and could even be increased, if the gas flux continues to be increased. So that there needs setting a baffle called step, which introduces the jetted gas into the turbulence boundary layer. In this case, the shape resistance may be fairly great. Besides, the waterline of model has also some effect on the ratio of reduced resistance, which acts on the size of wave. If waterline is deep, the wave could not affect the deployment of microbubble layer, so there is almost no effect on ratio of reduced resistance. However, the wave would affect distributing of microbubble layer under the model so that the gas could leak out from the two sides of model and directly affect the ratio of reduce resistance if the waterline is very small. Whether installing the dashplate or not has also the great influence on the effectiveness the ratio of reduced resistance. From the results of experiment, conclusion is that adding dashplate will greatly improve the effectiveness of reduced resistance.

当喷气量一定时，水流速度增大，减阻率提高；喷气量与减阻率之间的关系比较复杂，速度一定时，如果喷气量较小，减阻效果就比较差，但当喷气量增大的话，喷射出的气体就会形成一个&拱度&，增加了船模的形状阻力，在这种情况下最好采取断阶喷气，把气体引入到湍流边界层中，在这种情况下，船模的形状阻力比较大；船模的吃水对减阻率也有一定的影响，主要表现在波浪大小上，如果吃水较深，波浪影响不到微气泡层的分布，对减阻率不会造成太大影响，如果吃水较浅，波浪就会影响到微气泡层在船模底部的覆盖情况，可能会有部分微气泡从船模两侧泄漏，这样就直接影响到了减阻效果；是否安装压浪板，对减阻率也有较大的影响，从试验结果可以看出，在船模尾部加设了压浪板时，减阻效果明显得到改善。

The products certifying censor for domestic gas water-heater, domestic pressure regulators for liquefied petroleum gas, and domestic gas appliances are set in CGAC.

意大利著名休闲品牌gas，新潮的流行元素，高质量的面料和大规模的生产设备都是grotto s.p.a。

The industrial method for making hydrogen are:(1) Water electrolysis, with nickel plating 15% of the iron electrode electrolytic potassium hydroxide solution;(2) from natural gas or liquefied petroleum gas system for hydrogen cracking;(3) water gas law, namely the system of hydrogen from coke or anthracite.

氢气的工业制法主要有：（1）水的电解，用镀镍铁电极电解15％的氢氧化钾水溶液；（2）从天然气或裂解石油气制氢气；（3）水煤气法，即从焦煤或白煤制氢气。

Based on the achievements and developm ents in studying natural gas hydrates at home and abroad,the mechanism of causi ng the oil and gas reservoirs to be tightly sealed by the natural gas hydrates i s systematically analyzed in the paper through discussing the formation mechani sms,evolution properties and distribution laws of the natural gas hydrates.In li ght of the research on their control effects on petroleum accum ulation and reservoir preservation,several geologic models of oil and gas accumu lation and preservation related to the natural gas hydrates are proposed,such as vertically and laterally screened models,screened-by-drape and screened-by- contact models and syngenetically and epigenetically screened models,etc.

以国内外天然气水合物的研究成果和进展为基础，通过讨论天然气水合物的形成机制、演化特征以及其分布规律，系统分析了天然气水合物可以得天独厚地封盖油气藏的机理，探讨了其对油气藏尤其是气藏聚集和保存的控制作用，提出了天然气水合物聚集和保存油气的多类地质模式，如垂向遮挡和侧向遮挡、披覆遮挡和接触遮挡以及同生遮挡和后生遮挡等。

In this paper, the mechanisms of the generation, migration and production for coal seam gas are researched and the geological model for coal seam gas reservoir simulation is presented, according to the theories and methods of coal seam gas geology, petroleum geology and dynamic of fluids through porous media. A three-dimensional, dual-porosity, two-phase, pseudo-steady, non-equilibrium sorption mathematical model is established with the help of petroleum reservoir numerical simulation method. After that, this complex mathematical mode is approximated and solved by finite-difference and fully implicit methods. Coal Seam Gas Reservoir Simulation software in 1. 0 version (CSGRS 1. 0) with Chinese interface of pre-and post-processing function is developed.

本文应用煤层气地质学、石油天然气地质学和渗流力学等学科的理论和方法，研究了煤储层中煤层气的生成、储集、运移和产出机理，概化出了煤层气储层模拟的地质模型；以油气藏数值模拟和数值计算方法为工具，建立了描述三维、双孔隙、非平衡吸附、拟稳态条件下气-水两相流体混相运移规律的煤层气储层模拟的数学模型；详细推导出了该数学模型的全隐式求解方法；并借助计算机技术开发了具有中文操作界面的煤层气储层数值模拟软件CSGRS 1.0，实现了这一复杂数学模型的数值求解。

Combined with Liaoning Natural Science Funds Subsidize Project and Liaoning International Cooperate Research Project, taking petroleum contaminated soil of Liaohe Petroleum Field as research object, strengthen biodegradation of petroleum contaminator was studied, so as to explore engineering application, provide most appropriate microenvironment for biodegradation, strengthen degradation of petroleum hydrocarbon in soil and raise process efficiency.

我们结合辽宁省自然科学基金资助项目和辽宁省国际合作研究项目，以辽河油田石油污染的土壤为研究对象，进行了石油污染物强化生物降解的研究，目的是从工程应用的角度进行一些探索，为生物降解提供最合适的微环境，促进污染物与微生物细胞的相互接触，从而强化土壤中石油烃的降解，提高处理效率。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。