In the research and development of intelligence system, the computing complexity of reasoning is a important problem.

在智能系统的研究与开发中，推理方法的计算复杂性是一个很重要的问题。

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The chief lesson this teaches us is that making new equipment affordable has become a major problem in the research and development (R&D) process of any major new piece of military hardware.

这给我们的主要教训就是：能承受新装备的开销已成为研究开发军事新硬件设施过程中的主要问题。

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For the present existed problem, it should bring into aftertime research and development plan.

对于目前仍然存在的问题，应纳入今后的研究和开发计划。

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Both executives raise a problem with fixing research and development that should scare executives at less productive companies: Sometimes trying to fix things can just make them worse.

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It follows four years of research and development aimed at finding a natural method of tackling the problem of sea lice.

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Once more: I find it hard to understand how someone who worked as head of Research and Development at Pfizer could possibly deny this basic, universally recognised problem of poor external validity in clinical trials.

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