与前面不同的是，本章着重于降低系统的变量个数。
The main goal of the chapter is to reduce the number of state variables of systems.
如果系统的变量都是时间的连续函数，就称为连续变量系统或者模拟系统，其描述方程为微分方程。
The system that all its variables are continuous functions of time is called continuous-variable or analog system; the describing equations are differential equations.
运用图形CAD系统的变量化设计思想，结合图形特征，基于软件工程中的面向对象设计方法，开发了轮胎胶囊及模具CAD软件系统。
Combined with the characters of the graphics and variational parameters, a CAD system was developed, based on object oriented method for designing tire bladder and its mould.
冰川系统由两个基本的气候变量控制：降水和温度。
The glacial system is governed by two basic climatic variables: precipitation and temperature.
在您的系统设置中建立环境变量ROO-DEV，该变量应指向Roo项目中的引导文件夹。
Set up the environment variable ROO-DEV in your system settings, which should point to the bootstrap folder within the Roo project.
我喜欢通信软件系统确保我不会花太多钱在变量的费用。
I like the envelope system for making sure I don't spend to much on variable expenses.
这个设置只覆盖着一个进程—它不会对整个系统的全局变量进行赋值。
The setting is overridden just for this single process - it doesn't reassign the global variable for the entire system.
如果在系统上运行大量防护例程，那么可能需要增加这个变量的值。
If you are running a large number of fenced routines on your system, you may need to increase the value of this variable.
此列表取决于PATH环境变量和您的UNIX系统的内容） 。
The list depends both on your PATH environment variable and the contents of your UNIX system.
节点监测特性用来获取如下信息：JVM状态、系统和环境变量、可用的CPU等等。
The node monitoring feature is used to capture the information such as the state of the JVM, system and environment variables, available CPUs, and so forth.
您可以使用db2set系统命令查看和设置这些注册表下的变量。
You can view and set the variables under these registries using the db2set system command.
h是声明errno所需要的，errno是全局系统调用错误号变量(下面会有更多介绍)。
Errno.h is needed for the declaration of errno, the global system call error number variable (more on that below).
Drupal主题系统给这个模板提供的一个变量可以指出主页是否显示。
One of the variables presented to this template by the Drupal theme system can flag whether the front page is being displayed.
正如前面提到的，sudo会缩减系统变量，这可能有危险。
As discussed earlier, sudo will strip out potentially dangerous system variables.
在单元范围内将目标系统的WebSphere变量导入到variable .xml文件中。
Import the WebSphere variables of the target system into an variable.xml file at the cell scope.
tcsh提供了内置shell变量watch，可以通过它查看正在使用系统的用户。
Tcsh provides the built-in shell variable watch, which makes it easy to view who is logging in and out of the system.
保留系统环境变量的另一种方法是在sudoers中使用Defaults ！
The other way to preserve system environment variables is to use the Defaults! Env_reset directive, like in sudoers.
还存在其他执行(exec)某个进程的系统调用，它们的区别在于接受参数的方式和是否需要传递环境变量。
There are other system calls to exec a process, and they differ by how they accept parameters and if environment variables need to be passed.
(根据系统管理员对系统所进行的配置，您系统中的环境变量可能会比本文中所介绍的更多或更少。)
(Depending on how your system administrator configured your system, you might have many more, or far fewer, environment variables than are shown here.)
此外，该环境变量还为任何用于登录系统的登录机制，确保在一定时间间隔的不活跃之后自动超时。
Moreover this environment variable ensures auto timeout after inactivity for the interval of time for any login mechanism used to log into the system.
选择变量以及相应的值以符合您的系统和环境。
Choose the variables and their values to fit your system and environment.
这些程序假定人们能够处于一个与世隔绝的封闭系统之中，这个系统只包含有限数量的变量和有限范围的结果。
These procedures assume they can isolate from the rest of the world a closed system containing only a limited number of variables and a limited range of consequences.
在模块的加载和卸载期间，模块子系统维护了一组简单的状态变量，用于表示模块的操作。
During module load and unload, the module subsystem maintains a simple set of state variables to indicate the operation of a module.
您不得不重新创建用户ID、组、文件系统、环境变量，以及所有定义服务器的特性。
You'll have to re-create user IDs, groups, file systems, environment variables, and all the features that define the server.
类型系统自身并没有表现得能够捕获所有计划的不变量。
The type system by itself is not expressive enough to capture all of the intended invariants.
这条规则同样适用于全局变量的定义——与全局变量相关的权限也在系统编目中进行了定义。
This rule also applies to their definition — privileges associated with a global variable are also defined within the system catalog.
系统将为您创建与该方法的返回值类型相同的新局部变量。
A new local variable of the same type as the method's return value is created for you.
相反，系统将创建新的简单类型对象并将其赋值给变量。
Instead, a new simple type object is created and assigned to the variable.
有意义的分析是随其他变量而变化的行为，这些变量例如有沿着一个操作的循环，对系统所施加的负荷等等。
The interesting analysis is in changed behavior over some other variable like loops over an operation, load placed on the system, etc.
有意义的分析是随其他变量而变化的行为，这些变量例如有沿着一个操作的循环，对系统所施加的负荷等等。
The interesting analysis is in changed behavior over some other variable like loops over an operation, load placed on the system, etc.
应用推荐