Large amounts or different literature and various materials are stored on CDROMs, which is forming a giant trend in the world.
把大量的各种各样的文献和资料存到CD - ROM中已成为一股巨大的世界潮流。
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For example, my server has a single SCSI CD-ROM; with devfs enabled, I can access it by mounting either /dev/cdroms/cdrom0 or /dev/scsi/host0/bus0/target4/lun0/cd.