The battery apply is quite common and occupy a very important parts, especially lead-acid batteries are widely used in UPS, control switches, alarms, car towing power, electric bicycles and other fields.
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Recent years, Cloud Computing Technology becomes popular in the world; it can also allowing high speed data move between data centers and wired or wireless computing devices.
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Nowadays, the economics develops rapidly, information can be easily accessible. When we are facing to those large amount of data and information, the ordinary computer already not enough to store and handle those data
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