Asynchronous availability does not guarantee that primary and secondary system databases are completely synchronized.
而异步可用性则不保证主系统和辅助系统是完全同步的。
A secondary analysis was performed using two comprehensive international databases.
次级的分析应用了两个综合的国际数据库。
Using the biological primary databases at the National Center for Biotechnology Information (NCBI), we constructed a secondary database of phytohormone-related nucleotides and proteins.
以NCBI维护的一级数据库为数据源建立植物激素相关核酸和蛋白质二级数据库。
Databases can be stored on magnetic disk or tape, optical disk, or some other secondary storage device.
数据库可以储存在磁盘或磁带，光碟或其他间接的存储设备上。
Databases can be stored on magnetic disk or tape, optical disk, or some other secondary storage device.
数据库可以储存在磁盘或磁带，光碟或其他间接的存储设备上。
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