ISO IEC_13614-1995标准文件C ISO/EC so/Ec13614:1995(E) 4.21 substrate 4.22 track track pitch 4.24 WORM disk 4.25 Zone 5 Conventions… 5.1 Representation of numbers 52 Names… 6 Acronyms 7 General descr iption of the optical disk cartridge 3444455 8 General