The parameter m # max _ balch termed as dynamic range with maximum number of batches , is defined for quantitatively characterizing the enhancement in storage capacity of batch thermal - fixing scheme for multiple holographic storage . another parameter , m # ejf , termed as effective dynamic range is proposed to evaluate system ' s storage ability , and hereby the effective dynamic range values corresponding to the number of batches are calculated and compared 为了定量描述多重全息存储的分批热固定方法在提高存储容量上的优势,针对分批存储热固定技术,定义了光折变晶体的最大分批动态范围参量m _ ( maxbatch ) ~ # ,并且提出以有效动态范围参量m _ ( eff ) ~ #评价系统存储能力。