The sterane isomerization maturity parameter alkylphenanthrene index indicate that the maturity of oil sand is low.

甾烷的异构化成熟度参数、甲基菲指数均显示油砂成熟度低.

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Although the development of oil sand is faced with kinds of challenges, its future is encouraging.

尽管目前油砂在开发过程中仍面临各种挑战, 但发展前景看好.

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The authors introduced the concept of oil sand, its reserves and distribution in the world.

介绍了油砂的概念, 世界范围内的资源量及其主要分布.

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