Composition of carbon and oxygen isotope indicates that origin of carbon comes from mixture of the crust and mantle.
碳、氧同位素组成指示碳来源于壳幔混合。
The research of carbon isotope of methane has important significance for the clarification and origin of the coal-formed gas as well as for the resource estimation.
甲烷碳同位素的研究对煤成气的分类、成因及资源评价均有重要意义。
This paper gives a discussion on the origin of natural gas in the shallow reservoir in Binhai area, by a study of light hydrocarbons (C_1-C_7) and carbon isotopes.
本文利用轻烃(C_1—C_7)和碳同位素分析资抖，对滨海地区浅层天然气成因进行探讨。
Apart from the country of origin of commodities which will generate carbon emission, we must also take into consideration the consumption area of commodities and the distribution mode of profit.
除了产生碳排放的商品出产地，我们还必须考虑到这种商品的消费地，商品所产生利润的分配形式等。
Nevertheless, the combined carbon content and isotope analyses of micro-carbonate in metamorphic rocks can be used to make a distinction in origin between sedimentary and igneous protoliths.
不过，变质岩中微量碳酸盐的碳含量和碳同位素比值分析能够对原岩类型提供有效的判别。
Based on the carbon and oxygen isotopic composition and rare earth element (REE) patterns, the origin of the Dabaoshan deposit is considered to be related to the sea-floor thermal events.
根据含矿层序中的碳、氧同位素组成和稀土元素(REE)模式，认为大宝山矿床是海底热事件的结果。
The wax content of the crude oil is high, its methane carbon isotope could be reversed, indicating its multi-stage pool-forming origin.
油气藏含蜡量高，甲烷碳同位素具反转现象，说明其为多期成藏的产物。
The organic origin carbon dioxide mainly distributed around hydrocarbon generating sags, occurring as a secondary by product of hydrocarbon gas and relatively far away from the main faults.
有机成因二氧化碳气主要分布于生油凹陷周围，是烃类气体的次要伴生产物，并远离大断裂分布。
The origin of defects and its harmful to wire drawing wire rod also were analyzed. The reference for producing and analyzing quality of high carbon steel rod are provided.
分析了这些组织缺陷产生的原因以及它们对盘条生产、后续拉拔的危害，为高碳钢盘条的生产及产品质量分析提供参考。
Radio carbon dating puts the origin of the shroud between 1260 C. E. and 1390 C. E., consistent with the theory that it was a forgery.
根据碳同位素测定，该亚麻布产于1260年至1390年之间，不过许多人坚持认为这是伪造的。
Through the overview of low-carbon gardens, origin of the low-carbon garden and research in China, the low-carbon strategy will be posed.
通过对低碳园林的综述，分析了低碳园林的起源、我国的研究现状以及园林低碳化面对的问题，提出了相应的策略。
Through the overview of low-carbon gardens, origin of the low-carbon garden and research in China, the low-carbon strategy will be posed.
通过对低碳园林的综述，分析了低碳园林的起源、我国的研究现状以及园林低碳化面对的问题，提出了相应的策略。
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