The removal of organic micropollutant from drinking water has become a crucial problem.

有机微污染物的去除成为当前给水处理领域亟待解决的问题。

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Range detection is a crucial problem for the navigation of mobile robot.

距离检测是移动机器人导航的一个关键问题。

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Whilst this might sound like a truism, it is nevertheless a crucial problem to address.

尽管这可能听起来像是老生常谈，但却是待解决的重要问题。

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That is a crucial problem.

ECONOMIST: From the archive: Talking to Gaidar: From the hot seat | The

The firm makes recommendations about who is crucial and who may be a problem.

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Dr Hinton's experiments have focused on hand-written letters and numbers (handwriting recognition being a crucial, and so-far unsolved, problem in machine vision).

ECONOMIST: Machine vision