The primary reason for why experience and learning curve effects apply, of course, is the complex processes of learning involved.

为什么会产生经验曲线和学习曲线效应的首要原因是学习的复杂过程。

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During the documentation review activities, the developer's primary task is making sure the user assistance materials and error messages serve to flatten the customer's learning curve.

在文档审阅活动过程中，开发人员的主要任务是确保用户辅助材料和错误消息足以平坦客户的学习曲线。

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The wheel web, by virtue of its geometry and material characteristics, is a good emitter of high-frequency sound, and is believed to be the primary source of curve squeal noise.

尺寸和材料的特性导致了轮辋是一个良好的高频声源，轮辋也被认为是曲线尖啸噪声的主要来源。

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Now, experts are beginning to recognize that the Affordable Care Act may, in fact, be contributing to the good news a significant development as bending the cost curve was a primary goal of Obamacare.

FORBES: New Data Suggests Obamacare Is Actually Bending The Healthcare Cost Curve