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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