扩展

First of all, to prepare a USB expansion card, and 30 USB line, all the expansion cards are installed on the motherboard, of course, we must prepare a PCI expansion slot of the computer a little more.

首先，准备了 USB 扩展卡，和30根 USB 线，把所有的扩展卡都安装到主板上，当然，一定要准备一个 PCI 扩展插槽多一点的电脑。

In this paper we introduce the FITS basic format, the random-groups extension and the ASCII table extension for the images and catalogs of astronomical data, and the FITS blocking and the rules of the generalized extension of FITS format.

本文介绍了 FITS 的基本格式及其对随机组矩阵的一般扩展，和用于天文星表的表扩展格式，最后对FITS 格式的块结构与其扩展的一般规则也作了详细的介绍。主题词： FITS 数据格式数据结构。

With proving the isomorph between the function matrix algebra systems and the Boolean algebra s disjunction-conjunction systems,a method of extending the function matrix is proposed,and the expanding theorem of the extended function matrix is proven.

提出了功能矩阵的概念，在证明功能矩阵的代数系统与布尔代数析取合取代数系统同构的基础上，对功能矩阵进行扩展，并证明了扩展功能矩阵的展开定理；利用扩展功能矩阵逐步展开与约简，实现了功能的求解算法。

Based on the definition of Boolean function on set and positive extension, The sufficient and necessary condition of PBF is proven. At last, an algorithm of generating MSP expression of stack filter positive Boolean function is presented taking advantage of Hasse diagram.

通过定义布尔函数开、闭集和最小项正、负扩展，证明了布尔函数具有层叠性的充要条件是布尔函数开集的正扩展或闭集的负扩展具有不变性，在此基础上，提出了一种通过Hasse图确定层叠滤波器最简正布尔函数的算法。

Based on the definition of Boolean function on set and positive extension, The sufficient and necessary condition of PBF is proven. At last,an algorithm of generating MSP expression of stack filter positive Boolean function ispresented taking advantage of Hasse diagram.

通过定义布尔函数开、闭集和最小项正、负扩展，证明了布尔函数具有层叠性的充要条件是布尔函数开集的正扩展或闭集的负扩展具有不变性，在此基础上，提出了一种通过Hasse图确定层叠滤波器最简正布尔函数的算法。

In order to interpret the impact from different intensity of friction factors on urban development, a new model is developed by adding incidental cost and friction factors to the traditional Thunen Model.

为此，传统的杜能模型需要进行扩展，在原始模型的基础上加入偶然成本以及影响城市扩展的摩擦因子以对其进行完善，以便解释摩擦因子的不同强度对城市扩展的不同影响。

By improving and rebuilding the previous mid-latitude model, we extend the model to high latitude and low latitude, respectively. The extension to high latitude mainly includes the effects of convection electric field and particle precipitation. The low-latitude extension primarily takes account of the configuration of magnetic field and interhemispheric coupling.

在对原有中纬电离层模型改造和重建的基础上，将该模型分别向高纬和低纬扩展，模型向高纬的扩展主要考虑了对流电场和粒子沉降的影响，模型向低纬扩展主要考虑了磁场位形、共轭半球的影响。

Basic concepts and definition of suspended tree and extended contour are given, an algorithm to extract it is presented using techniques of dynamic local coordinate system and adaptive bounding box.

文中提出了悬树和扩展轮廓的概念，通过对扩展轮廓的分析和定义，使用动态坐标系和动态包围盒技术，设计了一个扩展轮廓的求取算法。

Based on the mechanisms for stress-assisted corrosion problem in oil-pipe system, authors have carried out numerical simulation, with application of Charles-Hillig Model 10 to study the behavior of crack propagation, where the advanced front-tracking method has been employed for finite element mesh construction and re-construction.

基于油气管道表面微裂缝在应力和腐蚀耦合作用下的扩展机理，根据Charles-Hillig模型用数值方法模拟了裂缝的动态扩展过程。研究的重点是确定裂缝扩展时的形态以及可以避免应力腐蚀现象的载荷和环境条件。

Thus, we may have to extend our view from one dimensional axis to multi-dimensional space, m -space, and to extend our research tools from scalars to multi-component vectors, m -vectors.

因而，我们可能要扩展我们的眼光，把我们的眼光从一维的"数轴"扩展到"多维空间"，把我们的分析工具从"标量"扩展到"多元向量"。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。