In order to meet requirements in future space applications, some technical problems about performances of cell and battery management in orbit must be solved.

阐述了从电池性能和电池组在轨管理两个方面必须解决的技术问题，以满足未来空间应用的需要。

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"Generally we know rather little about the performances of different species, as many have not yet been tracked," he said.

“总体来说，因为许多物种都没有追踪调查过，所以我们对不同物种本性的了解有限。”他说。

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Like many of the performances at Capital Fringe, this opera is not about costly and complex production values.

VOA: special.2009.08.05

Other newspapers tell about his daily activities,fan reactions and crowded performances.

VOA: special.2010.04.02

Recently, the X Factor faced complaints about performances by Christina Agueilera and Rihanna, but the regulator Ofcom did not uphold them.

BBC: Music videos need age rating says review

There is a sense that reputations mean nothing, it is all about performances for Tait, who is prepared to stand by that policy when the new Premiership season starts on Friday against Sale at Edgeley Park.

BBC: Alan Tait stamps his authority on Newcastle Falcons

Mr Howard's speech came against a background of feverish debate about the performances of the various the leadership contenders.

BBC: Leadership contenders await Michael Howard's speech