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；
On an imported heat exchanger in some chemical plant, an offset caused by fabricating deviation is presented on the joint between shell and straight part of head. By means of finit element method.
某化工厂一台进口换热器，由于制造偏差，在封头直边段与筒体相接处产生错边。
The LBP16, 4 operator is used to extract iris texture features, and the parameter of improved standard deviation of offset means is constructed for iris matching.
该方法使用LBP16, 4算子来提取虹膜的纹理特征，并构造了改进的移位均值标准差参数进行匹配。
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