The most serious limitation of the Nokia 770 as a potential PDA replacement was the lack of any way to set alarms that could wake the device.

作为PDA的潜在替代者，Nokia 770最严重的一个缺陷是无法设置警报来唤醒设备。

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In so doing, we have overcome a major limitation involving the application of nanoparticles in medicine, namely the potential of these agents to distribute throughout the body.

这样情况下，我们已经攻克了一个重要难关，纳米微粒在医学中的运用难关，这意味着药物将有可能可以到达身体的任意部位。

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This article analyzes the action principles and structures of Frame Fault Protection and Rail Potential Limitation Device, and proposes a solution to coordinate them.

对框架故障保护和轨电位限制装置保护动作原理、结构进行了剖析，提出了二者之间的配合方案。

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Perhaps the most obvious obstacle Apple may face will be the potential limitation for a gadget meant to be so small to have a large enough surface area on which to embed the solar cells.

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