In order to extend the life time of wireless sensor network, we consider it from two considerations: energy efficiency and energy balance.

为了延长无线传感器网络的寿命，我们从能量效率和能量平衡性两方面来考虑。

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We hope you will extend your offer bye-mail (for) two weeks.

我们希望贵方能用电子邮件将报盘延长两个星期。

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In this paper, we focus on these three problems and extend first two problems to Riemannian manifolds.

本文主要对上述三个问题进行较为深入的研究，并把前两个问题推广到黎曼流行上。

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"With over 200 bands coming from 11 countries to compete, we have listened to feedback from spectators and fans and we are delighted to extend The Worlds to two days, " he said.

BBC: World Pipe Band Championships in Glasgow gets extra day

Two years ago, we acted to extend health coverage to up to 5 million children.

CNN: Prepared Text of Clinton's State of the Union speech

Perhaps we should extend Zittrain's idea beyond the computer and onto the network itself, and offer two separate logical networks, operating over the same physical connections.

BBC: Staying safe and taking risks