This too helps extend the usable life of the drive.

这也有利于延长驱动器的使用寿命。

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Store in seal drum at room , dry place , usable life 2 year.

产品密封包装后贮存于阴凉、干燥处，贮存期一年。

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This minimizes the number of small writes that are presented to the device, which in turn optimizes performance and helps extend the usable life of the drives.

这样能够减少设备的小型写操作的数量，从而优化了性能，并且有利于延长设备寿命。

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Nanophosphate EXT is based on A123's proprietary lithium iron phosphate battery technology, which offers high power, long cycle life, increased usable energy and excellent safety as compared to other available battery technologies.

ENGADGET: A123 Systems' new lithium ion tech keeps EV batteries cool, your wallet in check