从主量元素（包括CIPW标准矿物组成）和过渡元素组成来看，该岩系近似原始岩浆组成。

The major elements (together with CIPW standard minerals) and transitional elements indicated that these dikes were similar to primitive magma.

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这些工作需要大量的熟料化学分析，将其转化为标准矿物组成，还需要丰富的水化机理方面的知识。

These require a bulk chemical analysis of the clinker, which is converted to normative minerals, and knowledge of hydration mechanisms.

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如果我们继续按照目前的标准使用矿物燃料，到2050年全球大气中的二氧化碳含量将达到550ppm(百万分率)。这个数字是人类进入工业化社会前的两倍。

If we continue to burn fossil fuels at current rates, levels of carbon dioxide in the atmosphere will reach 550 PPM (parts per million) — double pre-industrial levels — by around 2050.

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