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- four layer transistor 四层晶体管
- TH-PCPL is fabricated on four layer FR4 PCB and good agreement is shown between the measurement and simulation results. 而贯孔式光子晶体电源层也实际制作于四层板FR4的印刷电路板，其模拟与量测结果相当吻合。
- TCP/IP protocols map to a four layer model: Network Interface, Internet, Transport, and Application. TCP/IP协议可以用一个分成四个层次的模型来描述：网络接口层、互联网层、传输层和应用层。
- The structure of PMN is a four layer feedforward neural networks(FNN), where the Gaussian probability density function is realized as an internal node. PMN网为一个四层前馈网，它构成一个贝叶斯分类器，实现多类分类的贝叶斯判别，把输入的说话人语音数据模型参数通过网络变换为输出的说话人判定。
- The through hole PCPL (TH-PCPL) structure is proposed to be a low cost realization of the PCPL structure in four layer PCB. 利用高介电连通柱束光子晶体结构可得到许多不同等效介电常数的等效高介电材质，利用这些等效材质在设计截止频带时能作更多变化，更有弹性。
- The anther wall is composed of four layers: epidermis, endothecium, middle layer and tapetum. 巨龙竹的花药壁由4层结构组成，包括表皮、药室内壁、中层、绒毡层；
- Results The deep cervical fascia was divided into four layers with the fasciae of the infrahyoid muscles being a single layer. 颈深筋膜深层分为翼筋膜和椎前筋膜;
- PIPORTDOS is based on microkernel architecture, and consists of four layers: hardware abstract layer, system kernel layer, distributed message mechanism, and system servers layer. 华中科技大学图像信息处理与智能控制教育部重点实验室;
- The fibers were arranged in two close-packed layers and etched thinner for crossing layer by layer, and then an FCT structure with four layers was fabricated. 这些光纤先被排列成双层的最密堆积，再以蚀刻的方式令其变细，接著把两片蚀刻过的双层光纤单元，以层层交叉的方式堆叠，即可组成一个拥有四层结构的面心长方光子晶体。
- Underlain by Dynamic System, the paper divides the architecture of CTDPC into four layers: primary layer, nuclear layer, sustaining layer and scouting layer. 2、以动态系统论为基本理论支撑，本文将区县旅游规划结构体系分为基础、核心、支持、监控四个层面。
- Basically, there are four layers of security you'll need to establish and configure. 从基本上讲,您需要建立并配置四层安全性。
- CCGUI is divided into four layers: base window system, window manager, user interface toolkits and desktop environment. CCGUI系统分为基窗口系统、窗口管理器、用户界面工具箱和桌面管理器四个层次。
- This method is to use XML as the web describing language, and model a web site from four layers. 本文提出了一种基于XML的Web站点建模方法。
- Atmosphere is divided into four layers: Troposphere、Stratosphere、Mesosphere、Thermosphere. 迷恋完板块结构后，S成功转移目标到了大气层...
- Typically, the traditional data network mainly includes four layers: IP,ATM,SONET/SDH,DWDM. 目前的数据通信网络体系结构主要包括四层：IP、ATM、SONET/SDH、DWDM，其中IP层承载业务； ATM层实现业务流量工程；
- The new Chinese Oreo was four layers of crispy wafer filled with vanilla and chocolate cream, coated in chocolate. 这种新产品由四片薄脆的威化饼干组成，中间配以香草和巧克力奶油夹心，最外层包裹着巧克力。
- The wall of digestive tract is made up of four layers, which are the mucosa, tunica submucosa, muscularis and serosa. 消化道管壁由粘膜层、粘膜下层、肌层和浆膜层构成。
- There exist four layers of volcanic rocks in Sinian and Cambrian strata of Kuruktag area, Xinjiang. 在新疆库鲁克塔格地区的震旦纪和寒武纪沉积岩地层中，分布有四层火山岩。
- This transistor radio has four small cells. 这台半导体收音机用4节小电池。
- In this paper, the brief analysis is focused on the PIA firstly, the four layers model and the relationship and mapping between different layers are discussed later. 它是支持并行设计的产品信息的组织和排列模式，与产品建模、产品数据管理及先进制造模式之间有著密切的关联。
