The sheet feed press, web offset press, web gravure press and flexographic press are the most widely used in printing newspapers, magazines, books, advertisements and packaging papers.
在印刷包装业对各种印刷设备的需求中，量大面广的印刷设备是单张纸平版印刷机、卷筒纸平版印刷机、卷筒纸凹版印刷机和柔性版印刷机。
The first part of essay is about cross-trapping broad deviation of Beiren PZ4880 web offset press and advances the technology enhancement resolution, which achieves the proleptic result.
本文第一部分介绍了北人生产的PZ4880卷筒纸平版胶印机的横向套印超标偏差问题，并对此问题提出了技改方案，达到了预期效果；
The first part of essay is about cross-trapping broad deviation of Beiren PZ4880 web offset press and advances the technology enhancement resolution, which achieves the proleptic result.
本文第一部分介绍了北人生产的PZ4880卷筒纸平版胶印机的横向套印超标偏差问题，并对此问题提出了技改方案，达到了预期效果；
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