In view of the problem that the pictures on commodities packaging may have distortion in watermark detection process, studies are carried out and a new blind digital watermark algorithm is proposed.
针对商品包装图像在水印检测过程中图像会发生变形的问题展开研究，提出一种基于非均值量化系数特征不变的盲数字水印方案。
This article discusses mainly the problem of how to push on the proper packaging for goods, based on the principle of value engineering, and it is of great actual significance.
本文运用价值工程原理探讨如何推进商品适度包装的问题，有重要的现实意义。
The review also describes the security problem of nano-packaging. And on the bases of those, the review puts forward on the comprehensive security assessment of nano-particle in food nano-packaging.
作者同时综述了纳米包装材料的安全性问题，提出了需对食品纳米包装材料中的纳米粒子进行系统深入地安全性评价。
The review also describes the security problem of nano-packaging. And on the bases of those, the review puts forward on the comprehensive security assessment of nano-particle in food nano-packaging.
作者同时综述了纳米包装材料的安全性问题，提出了需对食品纳米包装材料中的纳米粒子进行系统深入地安全性评价。
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