指令程序

Control unit :tells the rest of the computer system how to carry out a program's instructions .

控制单元：告诉其余的计算机系统如何执行程序的指令。

In terms of memory hierarchy, we investigated how to improve the cache hit rate and localize data according to the characteristics of cache, master memory, local disk and remote disk in cluster systems. As for communication, features of cluster systems and different cluster internal networks are examined. Two popular parallel programming models - message passing model and share memory model - are analyzed in terms of how do they affect the cluster performance and how can we improve the cluster performance.

在处理器层面，分析了现代处理器中常用的一些技术，包括超线程技术、超长指令技术和NUMA架构等，对不同特点的程序的性能影响和如何充分利用处理器中的一些技术提升性能；在存储层次上，结合机群系统上Cache、主存、本地辅存及网络存储的存储层次的特点，分析了数据局部性、Cache命中率等对性能的影响以及提出如何提高数据局部性；通讯系统层面分析了不同机群通讯系统及不同机群通讯网络的特点；在编程模式方面，分析和比较了目前最常用两种并行编程模式--消息传递编程模式和共享存储编程模式，在机群系统上对性能的影响因子以及提出如何提高性能的方法。

PLC is one kind on the basis of technology of digital computer, electronic control device designed to use under the environment of industry specially, adopt it by memory that can programme, it is last user order not to used for,through figure or introductions of simulation /export, finish such functions confirmed as a series of logic , order , timing , counting , operation ,etc., to control all kinds of integrated equipment of electromechanics and production process.

PLC是一种基于数字计算机技术、专为在工业环境下应用而设计的电子控制装置，它采用可编程序的存储器，用来存储用户指令，通过数字或模拟的输入/输出，完成一系列逻辑、顺序、定时、记数、运算等确定的功能，来控制各种类型的机电一体化设备和生产过程。

A computer user's instruction that calls for action by the computer's executive program.

计算机用户使用的，要求计算机执行程序执行指令的说明的说明。

When the computer requires data or program instructions not in memory, expanded memory software finds the bank containing the data and switches it with the current bank of memory.

当计算机需要的数据或程序指令不在内存中，扩展内存软件找到包含数据的存储体并使用当前内存存储体切换。

The fingerboard can be configured, and the theme of the application and MIDI settings can also be customized.

指板能够被设置，应用程序和乐器指令数字化接口设置的主题能够也被自定义。

Before every global variable to describe what it holds

8226；在指令行的开始解释这个程序段的目的

In high-level data link control, the part of a data station that executes data link control functions as instructed by the primary.

在高级数据链路控制规程中，按照主站的指令执行数据链路控制各种操作程序数据站中的那部分。

In high-level data link control, the part of a data stat that executes data link control functions as instructed by the primary.

在高级 数据链路控制规程中，按照主站的指令执行数据链路控制各种操作程序数据站中的那部分。

Using the extended Hoare calculus we can derive true Hoare formulas which contain while statements free of loop invariants.

使用这个抽象机器，可以在其上进行许多带位操作指令的程序，特别是系统级代码的Hoare逻辑风格推理。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。