因特网由三个层次组成：骨干网，中间层次网和子网络。
The Internet is a three level hierarchy composed of backbone networks, mid-level networks, and stub networks.
对流层顶是一个中间层次，据观测，其温度是逆温或是等温分布。
The tropoause is an intermediate layer in which either a temperature in version or an isothermal temperature distribution is observed.
并从基本工作单位层次、中间层次和制度层次三个层次对这三种模式进行分析比较。
Then the author analyzes and compares these three models from three levels, the basic working unit level, the middle level and the systematic level.
中间层次是一座静思园，这里的地势被塑造成几个台地，每个台地都设有考顿钢挡土墙，其中埋置LED照明灯。
The middle level is a contemplative and ludical garden where the terrain was shaped into plateaus, each one framed by a corten steel retaining walls with embedded led lighting.
为了演示深度防御的工作原理，我们将首先研究包含三个主要层次的中心模型：核心层、中间层和最外层。
To show how the defense in depth works, we will first examine a centric model of three primary layers: core, middle, and outermost.
学校文化是由外显层、中间层和内隐层三个层次构成，分别对应于学校物质文化、学校制度文化和学校精神文化三种学校文化形态。
They are the outermost layer, the interlayer and the interior layer, so as the material culture, institution culture and the spiritual culture of school.
首先阐述了虚拟企业的概念及其对信息系统的要求，然后基于分布系统和组件技术的概念提出虚拟企业信息系统的框架，并对框架的各个层次特别是中间层进行了分析介绍。
Then this paper give out the framework of ve's information system based on distributed system and component technology and analyzes every tier of this framework, especially the mid-tier.
首先阐述了虚拟企业的概念及其对信息系统的要求，然后基于分布系统和组件技术的概念提出虚拟企业信息系统的框架，并对框架的各个层次特别是中间层进行了分析介绍。
Then this paper give out the frame - work of ve's information system based on distributed system and component technology and analyzes every tier of this frame - work, especially the...
首先阐述了虚拟企业的概念及其对信息系统的要求，然后基于分布系统和组件技术的概念提出虚拟企业信息系统的框架，并对框架的各个层次特别是中间层进行了分析介绍。
Then this paper give out the frame - work of ve's information system based on distributed system and component technology and analyzes every tier of this frame - work, especially the...
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