Energy problem is very important for routing protocol in mobile ad hoc networks since these mobile nodes must rely on their limited battery supply.
能源问题对于移动自组网是非常重要的,因为移动节点只能依靠它们有限的电池供应。
However, a new method could lead to portable desalination devices simple enough to run off solar power or a battery, but powerful enough to supply a family, or even a small village, with clean water.
然而,一种新的方法可能会导致一种便携式的海水淡化装置,它简单得足以赛过使用太阳能或电池的,然而其功能却强大得能满足一个家庭,甚至一个小村庄的清洁用水。
But building a tiny, lightweight flying robot is tough when you need a power supply — like an onboard battery — to keep the MAV flying.
然而研制这种微小、轻型的飞行器是很困难的,因为必须要有如板载电池这样的电源供电才能维持它的飞行。
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