十分省电，可以最大限度地延长电池寿命。
Miserly enough to conserve battery life to a maximum degree.
导致电池寿命得到卓越提升的最大因素是苹果设计了自己的晶片系统来运行电池。
The biggest factor that led to the excellent battery life in the iPad was that Apple designed its own system-on-a-chip (SoC) to run it.
电池寿命永远是笔记本电脑的最大弱点，目前各大公司都在努力改变这一局面。
Battery life is always the biggest weakness of laptop computers, at present each big companies are working to change the situation.
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