This paper advances the security target of the electronic commerce network payment system on the basis of having elaborated the question about the security of the network payment system.
本文在阐述电子商务网上支付系统安全性问题的基础上，提出其所要达到的安全目标。
To improve tracking accuracy and stability of optic-electronic target tracking system, the conception of generalized synergic target and an algorithm named error-space estimation method are presented.
提出了广义合作目标的概念及误差空间估计方法，提高了光电跟踪系统的跟踪精度与平稳性。
It consists of an electronic ultramicrobalance, an anechoic tank and a system of reflecting target.
该装置由电子微量天平、消声水槽和反射靶悬吊系统组成。
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