基本块

The operational amplifier is the most important basic building block of all linear circuits.

6在所有线性电路运算放大器是最重要的基本建筑砌块。

Many other template engines for PHP provide basic variable substitution and dynamic block functionality.

许多其它PHP模板引擎提供了基本的变量替换和动态块功能。

BOOT BLOCK of the BIOS memory block is the basic startup information, the form of its support for ISA cards, when after a failed BIOS upgrade, you can boot from the BOOT BLOCK and repair BIOS, this design was the use of BIOS update procedure and has been extended to this .

其中的BOOT BLOCK块是存储BIOS基本启动信息的，它支持ISA形式的显卡，当BIOS升级失败后，可以从BOOT BLOCK启动并修复BIOS，这种设计思路被BIOS刷新程序采用并一直延续到今。

After 7 days, some black, circular RPE cells climbed out slowly. Ten days after, cells became irregular, polygon with monolayer-coalesce in bottle bottom, which symbolized as the typical cobble-stone modality after about 13 days.

结果：组织块1d后贴壁，7d后可见有黑色、圆形的RPE细胞缓慢爬出，10d后细胞变成扁平不规则多角形，约13d后细胞基本单层融合长满瓶底，形成典型的鹅卵石样。

The basic structure of the gyroscope is a cantilever beam mass structure. The cross section of the beam is rectangular.

陀螺的基本振动结构为悬臂梁-质量块结构，梁的截面为接近于正方形的矩形。

Under the cases of the linear interconnected systems with all its subsystems are one dimension, a theorem to judge the properties of single loop interactions has been given; the study also indicated that the properties of interactions cann't independent of the properties of subsystems in the multi-loop interaction conditions, and a all field root locus method has been proposed to decide the properties of interactions; a interaction stabilizable theorem has been given, and the efficacy of interactions with respect to the interconnected systems has been configured, Some primary results are reported which are induced by using a method of computer aided test to study block interactions, the stationary feedback efficacy of closed loop interactions have been discussed and a stability guess has been proposed.

本文提出互连系统的合作稳定性概念及其原理，给出了互连系统的本原稳定度、稳定中心、回路关连的级数以及关连的性质等基本定义；并在此基础上对线性互连系统进行关连分析，给出了一系列涉及到关连与互连系统稳定性关系的命题、引理、定理及其证明；其中，在子系统都是一维的线性定常互连系统情况，得出了单回路关连性质判断的定理；并指出在多回路关连条件下，关连的性质不能独立于子系统的性质，以及用全域根轨迹法判断关连性质的方法；给出了关连可稳定理，并对关连对互连系统的影响作用进行了分析。本文还用机辅试验的方法研究块阵关连并给出一些初步结果，本中还探讨了回路关连的静态反馈作用并提出一个判稳猜想。

The main objective of this dissertation was to develop methodologies with capability of engineering application for simulating flow in fractured rock using discontinuum models. The study work includes three parts. In the first part, numerical methodology of three-dimensional discrete fracture network model casing on hybrid BEM-channel was presented, and the technique for improve the model's computing efficiency was also studied. Firstly in this part, computer simulation methodology based on the Baechermodel for generating network of discrete fractures was presented, which includes the follow details: probability distributions of fracture density,orientation, trace length, size, and aperture and estimation of their statistical parameters; stochastic models of fracture network; Monte-Carlo's simulation method; numerical simulation procedure and technicality.

给出了离散裂隙网络模型所依据的基本假定；发展了基于Baecher模型的离散裂隙网络计算机随机生成技术：详细地推导了单裂隙渗流和多裂隙相交网络渗流的边界单元法公式，发展了离散裂隙网络中稳态渗流的边界元数值技术，并且讨论了相关的具体数值技术细节，如角点的处理方法，单元的自动剖分等：描述了混合边界元—管流模拟方法及其数值实现；研究了裂隙网络的简化方法，并针对裂隙网络边界元法的特点提出了一种改进的分块三角分解法。

Those radii of curvature are connected with the distribution of masses by the fundamental equation of Einstein

这些曲率半径和质量块的分布根据爱因斯坦的基本公式紧密联系

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。

The unit in which data is stored and retrieved on a fixed block architecture disk.

固定块结构磁盘中，数据存储和检索的基本单位。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。