共查询到20条相似文献,搜索用时 78 毫秒
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山峦弟兄,胖瘦从容。远近高低,展怀坦胸。身着翡翠,目秀眉清。心底酿歌,流泉涂涂。时而高昂,时而回声。自自然然,祥和成风。水润山色,山壮水情。鲜美欲滴,雅俗透明。群峰起伏,碧涛汹涌。疑是至海,误入龙宫。怪石奇木,伟载天工。花香鸟语,人寿倍增。山寿水寿,致远宁静。淡泊妙观,志在尔中。无私无畏,海阔天空。日月往再,焕发年轻。祖国添锦,可贺大功。其水同我,其山我同。能工巧匠,画龙点睛。几尊石雕,栩栩如生。以山为伍,与水相映。几代名家,献身民众。高铸标杆,激发由衷。策马挥鞭,段蔚云蒸。我同山水——写在山海关长寿山@曹彦彬~~… 相似文献
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《染料与染色》1975,(2)
还原染料乓g仑护二、粼。溉枷、意大利,93417。新紫葱酮染料,坚牢绿色。Ciba一Geigy,80331,Ger。offen。2,254,500.金黄色还原染料。捷克斯洛伐克,80333,Czech.147,260。黄色,染棉。捷克斯洛伐克,93441,Czeeh.147,711。混合物为黄色坚牢染料。 _宜,、*,尹)、。·,。。_宾匆口丫__穿冲 ‘梦数莎娜CH3 00训3Ciba一Geigy,147423染棉为深黄色。Ger。offen。2,310,305。捷克斯洛伐克,93443,c:ech.i47,750.R=甲基为还原艳红,R或等于异丙基。捷克斯洛伐克,93444,Czeeh。147,785比不含甲基的阴丹士林性能好。 三菱,137899,JaPan一72 44,531。 … 相似文献
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《香行子.忆岁月》斗转星移,荏苒时光。忆岁月思绪迴荡。启蒙培才,一中成长。入高学府,学业奋,图自强。奔赴巴蜀,几经磨难。沐风雨意志更刚。乌云乍开,霞光万丈。饮欢庆酒,杯中泪,语中狂。返还津城,终回故乡。赴伊国重任担当。荒漠深处,现代工厂。恁技术难,生活苦,常思乡。走入仕途,人民为上。切不可怠慢松放。 相似文献
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《陶瓷研究与职业教育》1975,(1)
路线是个纲,纲举目张。鼓足干劲,力争上游,多快好省地建设社会主义。工业学大庆。坚持政治挂帅,加强党的领导,大搞群众运动,实行两参一改三结合,大搞技术革新和技术革命。古为今用,洋为中用。百花齐放,推陈出新。打破洋框框,走自己工业发展道路。团结起来,争取更大的胜利。 相似文献
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分析了中国石油石化产业目前所处的状态 ,介绍了外国石油石化产业的组织模式及加入WTO后中国石油石化市场的竞争态势 ,指出了中国石油石化产业亟需解决的问题 ,提出中国石油石化企业亟需持续重组。 相似文献
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Muhammad Imran Ahmad Nan Zhang Megan Jobson 《Chemical Engineering Research and Design》2011,89(4):410-420
Characterisation of petroleum fractions is the systematic analysis and representation of composition and properties of petroleum fractions. Characterisation methods play an important role in understanding of the physical and chemical behaviour of a petroleum fraction, its individual constituents, and are essential for modelling of refinery processes. In order to comply with the current and future product specifications for cleaner fuels, refineries are employing new processing technologies and more severe operating conditions in existing operating units. Consequently refinery process models are required to capture the chemistry of conversion processes employing characterisation of petroleum fractions at molecular level. In this paper a review of the conventional characterisation methods used for modelling of refinery processes is presented. The molecular type and homologous series (MTHS) matrix representation of petroleum fractions is discussed in detail. The previous work on MTHS matrix representation approach is limited to light petroleum fractions such as gasoline, and takes into account only hydrocarbon molecules. These shortcomings of MTHS matrix representation approach are addressed in this work through the development of a new strategy for estimation of composition and properties of petroleum fractions. 相似文献
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Derevich I. V. Gromadskaya R. S. 《Theoretical Foundations of Chemical Engineering》2002,36(6):583-588
A procedure for calculating petroleum viscosity over wide ranges of petroleum density, temperature, and pressure is developed from the van der Waals equation of state. The effect of dissolved light gases on petroleum viscosity is explained in terms of solution thermodynamics. Formulas for calculating the viscosity of degassed and gas-containing petroleum are derived, and the calculated data are compared with experimental data. 相似文献
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介绍了我国石油和化工企业资产重组及集团发展新阶段的特点,评析了处在经济转型期我国石油和化工企业资产重组和集团发展与世界大型石油和化工公司的差距,提出了石油和化工企业集团发展战略的目标和运作取向 相似文献
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K. S. Elkin N. I. Fedorov V. S. Sporykhin A. E. Cherevko V. M. Strakhov I. V. Surovtseva 《Coke and Chemistry》2009,52(11):487-491
The industrial use of low-ash petroleum coke instead of coke nuts in ferrosilicon production is considered. The quality and
behavior of the petroleum coke in high-temperature smelting are studied. The use of petroleum coke in smelting ferrosilicon
proves efficient. 相似文献
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介绍了我国石油行业的现状及基本特点,分析了加入WTO对我国石油行业的不利影响和有利因素,提出了增强我国油气行业竞争力的对策及措施。 相似文献