详细解释:【计】 存储容量
【化】 贮存量
【经】 存储容量
例句：
External hard disks can be purchased alone and then attached to the microcomputer with cables; they are used for backing up large amounts of data or for additional storage capacity.内部硬盘永久性地安置在微机内，只有需维修或更换时才取出。外部硬盘可以独立购买，通过电缆线与微机相连。