Even though our earth is rich in water resource, there is still a shortage of water in many places because ocean water can't be used directly.

尽管地球的水资源丰富，但由于海水不能直接被利用，所以仍有许多地方缺水。

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For the unsaturated soil, this method provides a very accurate estimate of earth pressure from the direct shear experimental indexes, which overcomes the shortage of the extended Rankine theory.

对于非饱和土，采用简单易得的直剪试验指标应用广义朗肯土压力公式就可以得到相当精确的结果，弥补了扩展朗肯土压力理论的不足。

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The earth that humanity resides in is facing progressive worsening of the environment and increasing shortage of resources. "Situation is created by mind".

人类所面对的地球，环境日益恶化、资源日益匮乏。

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Which is fine, there could be a shortage of rare earth metals.

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Although there is no early prospect of a global shortage of any of the earth's resources, a larger population does change the earth and its environment, removing forests, cultivating land or building on it, and driving out other species, and that is itself a cause for legitimate concern.

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Meantime, because universities have cut back on courses in earth sciences, mineral geology and mine engineering, there is a severe shortage of workers.

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