Nowadays, digital migration is regarded as one of the feasible strategies for digital information long-term conservation.
目前，就各种数字资源长期保存策略来说，数字迁移被认为是具有可行性的策略之一。
First, discuss the reasons and types of digital migration.
首先，讨论了数字迁移的原因和类型。
For the digital migration program of time section, it is required not only the better results but also the high speed of calculation, or its application will surely be restricted.
地震时间剖面的数字偏移程序不但要有较好的偏移效果，还要求运算速度快，否则其应用要受到限制。
Digital migration is a strategy of the long-term preservation of digital resources.
数字迁移是数字资源长久保存的策略之一。
Digital migration is a strategy of the long-term preservation of digital resources.
数字迁移是数字资源长久保存的策略之一。
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