) 25六、 强插警告提醒音(Periodic Warning Tone ) 26六、 备份电源(Reserve Power ) 29三、 遇忙重选被叫分机 ( Step Call ) 26八、 脉冲拨号呼叫(Rotary Dial Calling ) 131、 路程经过过程长途拔取记载数码通知...
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but i more prefer you keep home and i know there is late » 但我更喜欢你让家里，我知道有晚 back up power » 备份电源 Electric Components » 电子元器件 ..
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... automatic tank battery 自动油罐站 backup battery 备用电源, 备份电源 banked battery 并联电池组; 数路供用电池组 ...
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太阳能电池仍将作为备份电源。
较大型的单元大多采用电池、飞轮、柴油电机或三者的组合作为备份电源。
Most of the larger units use batteries, flywheels, diesel generators, or a combination of the three, acting as a backup power source during power quality or utility disturbances.
他们需要存储空间、电源、备份以及其他许多资源。
They require space, power, backups, and many other resources.
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