The application value of traditional method to explore the oil and gas source using carbon isotope was bounded by the type and maturity of source rock.
利用气体碳同位素探索油气来源的传统方法由于受源岩类型、源岩成熟度等因素的影响，其实际应用受到很大的限制。
The step-fed sequencing batch reactor (SFSBR) is a new type of the enhanced nitrogen removal system, characterized by a multiple anoxic feeding for supplying the organic carbon source to denitrifiers.
分步进水序批式反应器（SFSBR）是一种依靠多步缺氧进水补充反硝化碳源的生物脱氮强化工艺。
A carbonaceous heat source composition for a non-combustion type smoking article according to the present invention includes carbon and 0.5 to 5% by weight of a polyhydric alcohol.
一种非燃烧型吸烟物品用碳质热源组成物，其包含有碳，且含有多元醇的比例是0.5 ~ 5%重量。
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