This article briefly talks on the source of pollutant rainwater inside battery limit of refining unit and necessity of its treatment and drainage.
论述了炼油装置区内污染雨水的来源和处理排放的必要性；
While it’s true that 3G and Wi-Fi radios are the biggest drain on smartphone batteries and they limit the battery performance of all 3G devices, the iPhone is particularly inefficient.
使用3G和wi-fi确实是智能手机耗电最大户，限制了所有3G设备的电池续航时间，而iphone在这方面尤其低效。
Battery makers continue to achieve capacity gains by pushing closer to that 80 percent efficiency limit.
电池制造商们继续通过更接近这个80%的效率极限，以便提高电池容量。
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