The industry's extreme capital-intensity is certainly a barrier to entry, and in theory a market with only a few suppliers is ripe for rigging.

该行业的极端资本集约度是外人进入的阻碍，从理论上说只存在少量供应商的市场是操纵起来成熟的。

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The theory of cognitive load views the limitations of working memory capacity as a major barrier to learning.

认知负荷理论把工作记忆容量的有限性看作是影响学习的主要障碍。

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In translation theory and practice, how to remove the barrier of culture background to transmit meaning from the original is one of the central issues to which people pay close attention.

在翻译理论和翻译实践中如何更好地破除文化背景的障碍，有效地传达原文的意义，这一直是人们关注的焦点之一。

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As string theory involves intricate mathematics, the barrier to entry into its community is high.

ECONOMIST: Theoretical physics

This ambiguity also frustrates American trade officials, who consider European labelling laws, both in theory and in their rather confused practice, to be a technical barrier to trade.

ECONOMIST: Food for thought | The