The erasable optical disk with high recording density, high stability, high data transfer rate, high carrier-noise ratio and low error rate arc the main points in the research and development.
当前的研究与开发的重点是具有高记录密度，数据传输速率快、稳定性好、载噪比大和误码率低的可擦型光盘存储材料。
The written data is erasable. Data can be rewritten after being erased.
写入的数据可以擦除，擦除之后还可以再写入。
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