The concept of nominal virtual height is introduced to analyze the influence of the cracks over the structural rigidity and a comparative analysis of the influence of the two corrosion modes over the structural rigidity is also made .

同时引入名义 有效 高度的概念来分析裂缝对结构刚度的影响，并对两种腐蚀模式对结构刚度的影响进行了比较分析。

The virtual realm of Marx 's ecological moral thought benefits the study of man ′ s overall developing theory to a new height .

三是马克思生态伦理思想的 道德境界有利于把人的全面发展理论研究推向一个新 高度。

This paper further discusses interactive development of entity library and virtual library an important subject with realistic significance which promotes the information sharing step into a new height .

探讨实体图书馆与 虚拟图书馆的互动发展，使信息资源的共享跨入一个新的 高度，是具有现实意义的一个重要课题。

Medicine and medical materials are fixed price at virtual height .

药品、医疗材料 虚 高定价；

The Virtual Prototype Technology of Large Mining Height Electric Draught Shearer 's Ranging Arm and Finite Element Analysis of Its Key Parts

大采 高电牵引采煤机截割部 虚拟样机技术及关键零件的结构有限元分析

Measurement and Analysis of Ionospheric Virtual Height With High Precision

电离层 虚 高的高精度测量与分析

The conception of nominal virtual height is brought forward to analyze the influence of cracks . And the relations between rigidity and service-time are built .

同时提出了名义 有效 高度的概念并运用线性回归方法，得出结构刚度随时间变化的关系，然后运用蒙特卡罗方法对既有钢筋混凝土梁桥的使用寿命进行预测分析。