The key lies in identifying the need and developing a strategy to make efficient use of the enormous resources available at a fraction of the cost.

关键元素在于定义需求，并找到办法以较低的成本有效地利用巨大的资源。

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Fractional crystallization and assimilation constrain lithological composition and fraction, and play a key role in the formation of intrusive complex.

结晶分异和同化混染是侵入岩体形成过程中控制岩相成分和分异程度的主导因素。

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While PCs account for just a fraction of HP's sales, the business has been a key part of HP's resurgence over the past few years.

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