The use of vegetable oils for engine fuels may seem insignificant today, but such oils may become, in the course of time, as important as petroleum and the coal-tar products of the present time.
1912年，Rudolf Diesel在一场演讲中再度提到：使用植物油作为引擎燃料，现在看起来或许是微不足到，但最终可能变得跟石油与煤焦油产品一样重要。
Hydrogenation of anthracene oil projects take the sets of coal tar distillate hydrogenation technology and mature technology of Shanghai shengbang Petroleum Chemical Technology Co., Ltd.
蒽油加氢项目采用上海胜帮石油化工技术有限公司的成套煤焦油馏分加氢工艺和成熟的技术。
The paper describes in detail the four factors resulting in the corrosion of buried steel pipeline, that is environment, corrosion control effectiveness, material of pipe steel, and stress of pipeline, presents a total statistics on petroleum asphalt, coal-tar enemal, extruded polyethylene coating, PE tape, FBE, and multiple coating system and the individual percentage of theirs per years during 1990-1995, and points out that the selection of all kinds of coatings, being different behaviors, should be defermined according to the geological conditions and corrosive environments along pipeline route.
阐述了埋地钢质管道发生腐蚀的四个影响因素，即环境、腐蚀防护效果、钢管材质和制造工艺以及应力水平，统计了1990-1995年石油沥青、煤焦油瓷漆、挤塑聚乙烯、PE胶带、FBE、复合覆盖层的涂敷量，指出防腐覆盖层各有优缺点，应根据管道线路的地质条件、腐蚀环境等而定，目前应建立防腐层的综合评价方法以解决防腐覆盖层的设计问题，同时还应对钢管表面处理、现场补口加以重视，在采用高强薄壁钢材时应考虑壁厚要求。
Objective To compare the mutagenieities by combustion particulates from liquefied petroleum gasand coal, and to know the model of their joint action.
目的比较液化石油气燃烧颗粒物和蜂窝煤燃烧颗粒物的致突变性以及二者的联合作用。
Objective To compare the mutagenicities by combustion particulates from liquefied petroleum gasand coal, and to know the model of their joint action.
煤和液化石油气是我国的主要家用燃料，其燃烧过程中产生的颗粒物是室内外空气污染的重要成分。
Abstract摘要: Objective To compare the mutagenicities by combustion particulates from liquefied petroleum gasand coal, and to know the model of their joint action.
摘要摘要：目的比较液化石油气燃烧颗粒物和蜂窝煤燃烧颗粒物的致突变性以及二者的联合作用。
PAHs compositions and isomeric compound ratios were generally used as the indexes to apportion PAHs sources. From 1920 to 1944, PAHs mainly derived from petroleum production; from 1944 to 1980, the predominant source was the production from grass/wood/coal combustion; and from 1980 to 2004, PAHs composition presented the multi-sources of petroleum and combustion.
PAHs的组成和特征组分比值分析显示，1920～1944年间PAHs主要来自石油产品泄漏，1944～1980年间，主要来自草/木材/煤燃烧，1980年至2004年则显示出石油和燃烧产物混合来源的特征。3。
The changes in the consumption of petroleum and gas on the impact of coal were considered.
自20世纪90年代以来，尽管我国一次能源消费构成中的煤炭比重由1990
The straight or skew bevel gears of tempered tooth flank are still widely used in large machine equipment in coal mine, metallurgy and petroleum industries around our country at present.
目前，国内煤矿、冶金、石油等行业的大型机械设备中仍广泛使用软齿面直齿或斜齿锥齿轮，因此普遍存在著承载能力低、使用寿命短、备件储备量大等问题。
An experimental study of 300 mice exposed to pitch(3 gm. dissolved in 10 ml. of 80% benzene solution)obtained from 4 different sources, name- ly Anshan coal-tar pitch, Yu-men petroleum pitch, Dairen petroleum pitch or commonly known as Russian crude oil and the Asia Oil Company, USA, was carried out over a period of 350 days.
三根据四种来源不同的沥青所引起皮肤良性与恶性病变的发病率和潜伏期的长短，可将其毒性的强弱顺序排列如下：(1)鞍山煤焦油沥青，(2)美国亚细亚公司石油沥青，(3)大连石油沥青，(4)西北玉门石油沥青。
Experimental results show that when the ratio of petroleum coke to coal in the mixed fuel increases, the SO 2 emission increases.
结果表明，混合燃料中掺焦比例越大，混合燃料的硫含量越高，SO2 排放浓度越高；纯烧石油焦时SO2 排放浓度最高。
The available sizes of filter plates we can provide is 310mm~2000mm with the endurable working pressure of 0.4MPa～4Mpa. Its working temperatures vary from 40℃～120℃, and filter area from 0.6m2 to 1190 m2. Nowadays, they are widely used in various industries such as metallurgy, petroleum chemistry, food processing, pharmacy, clay dyeing, coal washing, architectural material, mining as well as sewage dispose.
公司先后研发生产了滤板尺寸从310mm～2000mm，过滤面积从0.6m2～1190 m2，过滤压力从0.4MPa～4Mpa，过滤温度从40℃～120℃各式压滤机，已广泛应用于化工、冶金、环保、煤炭、陶瓷、制药、食品、印染、石油、非金属矿、建材等行业。
Objective To evaluate the influence of gaseous combustion products of the natural gas, liquefied petroleum gas and coal on the indoor air quality.
目的 初步评估天然气、液化石油气和蜂窝煤的气态燃烧产物对室内空气污染的影响程度和特征。
In Canada, fossil fuel derivatives, such as natural gas, crude oil, coal, and liquified petroleum gas, are a primary source of energy.
在加拿大，化石燃料的衍生物，如天然气，原油，煤炭，液化石油气，是一个主要的能源来源。
Main mines in Albania include petroleum, asphaltum, chrome, copper, nickel, iron, coal and so on.
阿尔巴尼亚的主要矿藏有石油、沥青、铬、铜、镍、铁、煤等。
Major producers GB, JB, G, Y, Q/ZB, JB/ZQ category, Shanghai Q/JB class standard fittings and DIN standards and UNF threaded a full range of standard hydraulic pipe joints (made another choice Huang Copper, stainless steel, etc.), low, middle and high steel wire woven EHV Series hose assembly and a full range of aluminum, iron and plastic pipe folder, for petroleum products, chemicals, shipbuilding, coal, metallurgy, engineering, construction, machine tools, Agricultural machinery, transportation and other industries more than 30 large and medium-sized manufacturers supporting host and the host exports to the United States, Japan, Russia and other countries and regions, enjoy a high reputation.
主要生产GB、JB、G、Y、Q/ZB、JB/ZQ类、沪Q/JB类标准管接头和DIN标准及UNF螺纹标准的全系列液压连接管接头（材质另可选择黄铜、不锈钢等），低、中、高超高压系列钢丝编织胶管总成及全系列铝、铁、塑料管夹，产品供石油、化工、船舶、煤炭、冶金、工程、建筑、机床、农机、交通等行业30多个大中型主机厂家配套，并随主机出口美国、日本、俄罗斯等国家和地区，享有较高声誉。
Methanol, which can be produced from coal, is an ideal alternative fuel of petroleum in our country.
甲醇可由煤制得，在我国是一种理想的石油替代产品。
INTERACTION BETWEEN A BITUMINOUS COAL AND A PARAFFINIC PETROLEUM RESID IN COPROCESSING Ⅰ.
文献名称兖州煤与大庆减压渣油在共处理过程中的相互作用Ⅰ。
Gas Valve Material Domestic gas commonly used is divided into four categories: natural gas liquefied petroleum gas artificial gas and liquefied petroleum gas and air mixture in which the smallest corrosive gasBalanced Bellows Safety Relief Valves liquefied petroleum gas followed corrosion is the biggest artificial gas artificial coal gas harmful substance is mainly sulfur dioxide naphthalene coal tand so on.
国内常用的燃气分为四种：天然气、液化气、人工煤气和液化气与空气的浑合气，其中天然气的腐蚀最小，液化气次之，腐蚀最大的是人工煤气，人工煤气中的有害物质主要是二氧化硫、萘、煤焦油等。
This company in domestic and foreign originated the way processing oil silt method which burns down using the coal-fired boiler, after soon oil silt debonding solidification processing, manufactures Cheng Fangmei the fuel, mixes in the coal-burning, serves as the coal-fired boiler fuel, realizes during recycling use greasy dirt granulated substance's petroleum class material's quantity of heat's to oil silt detoxification processing, and using coal-fired boiler's haze processing system, guaranteed that the emissions waste gas standards, the waste residue according to the present coal-burning waste residue's processing mode, uses in the building materials or the afforestation.
本公司在国内外首创了利用燃煤锅炉焚烧的方式处理油泥砂的方法，即将油泥砂脱粘固化处理后，制作成仿煤燃料，掺入燃煤中，用作燃煤锅炉燃料，在回收利用油泥砂中的石油类物质的热量的同时实现对油泥砂的无害化处理，并利用燃煤锅炉的烟气处理系统，确保排放废气达标，废渣按现行的燃煤废渣的处理方式，用于建材或绿化。