Any of various natural bitumens, such as mineral pitch or asphalt.
树脂，自然沥青：某种自然的沥青，如矿石沥青或树脂。
Any of various natural bitumens, such as mineral pitch or asphalt.
树脂，自然沥青某种自然的沥青，如矿石沥青或树脂。
And the use of this knowledge in exploration and recovery of oil. gas, and related bitumens.
并用此知识于石油、天然气及有关的沥青勘探和开采。
At last, based on the characteristics of microstructures, class fied the evolutionary phases of bitumens.
根据沥青显微结构和光性特征划分了沥青的演化阶段。
The reservoir bitumens were systematically studied by applying the organic petrologic and organic geochemical methods.
应用有机岩石学和有机地球化学方法对储层沥青进行了系统的研究。
Hydrocarbon: an organic compound (as acetylene or butane) containing only carbon and hydrogen and often occurring in petroleum, natural gas, coal, and bitumens.
碳氢化合物：一种有机化合物(例如乙炔或丁烷)，只包含碳和氢两种物质，通常出现在石油、天然气、煤炭和沥青中。
The bitumen produced from Lanlian is modified with SBS, PE, SBR. Moreover the performance of mixture with modified bitumens and mechanism of modification are studied.
对兰炼沥青分别用SBS、PE、SBR进行改性，并对改性沥青混合料路用性能及改性机理进行了探讨。
The author suggests that prebiological informational structures, gene predecessors and protoorganisms should be looked for among abiogenic ordered hydrocarbon molecular systems(hard bitumens).
文章提出，应在非生物成因有序碳氢分子体系（硬沥青）中寻找前生物信息结构、基因之祖和原生有机体。
The author suggests that prebiological informational structures, gene predecessors and protoorganisms should be looked for among abiogenic ordered hydrocarbon molecular systems(hard bitumens).
文章提出，应在非生物成因有序碳氢分子体系（硬沥青）中寻找前生物信息结构、基因之祖和原生有机体。
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