Since the dawn of the digital computer age, long-term data storage and backup have been the province of a single primary medium: magnetic tape.
虚拟磁带自数字计算机时代曙光初现，数据的长期储存和备份就一直是由磁带这个单一的重要介质担纲。
This software upgrade also provides statistical functions, fast picture searching, selective backup, and fading long-term memory.
这个软件升级还提供统计功能，快速图片搜寻，选择性备份和消除长期存储。
But the compound may be appropriatefor other applications, such as in backup generators that would storeenergy long term in case of a natural disaster, he says.
但是这种化合物可能适合于其它一些应用，比如发生自然灾害时可以作为一种能够长期储能的备用发电机。
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