有储蓄能量、稳定压力、减少电耗等功能。
Its function is storing pressure, reducing power consumption.
他们知道自己何时会受到期待或需要尽自己所能——并且能够为这些关键时刻储蓄能量。
They know when they're expected or required to give everything they have — and they save their energy for those occasions.
正如比尔·盖茨所说，即使把全世界的每一颗电池都集中起来，以现在的使用量来看，储蓄的能量也只够人们用10分钟。
Indeed, according to Bill Gates, if you take the entire world's battery capacity - every battery everywhere - it can store just 10 minutes of the world's current energy usage.
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