最近的研究确实表明，高二氧化碳水平与温暖的间冰期有关，而低二氧化碳水平与寒冷的冰期有关。
Recent studies do in fact show that high carbon dioxide levels are associated with warm interglacial periods, and low levels with cold glacial periods.
大多数科学家都认为：由于为了提供能源和交通运输而大量燃烧化石燃料，造成含碳化合物的大量排放，因此本世纪气温将升高二到六度。
Most scientists agree that temperatures will rise by between two and six degrees Celsius this century due mainly to carbon emissions from burning fossil fuels for power and transport.
而该聚合物和表面活性剂分子结构的设计与优化对提高二元复合驱油体系性能的影响还有待研究。
But how the molecules structure design and optimization of polymer and surfactant would improve the binary oil-displacing system remains to be seen.
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