If there are no errors in the server program, the forward is valid; if there are errors, it will be invalid.
如果服务器程序中没有错误，那么转发就是有效的；如果有错误，那它就是无效的。
The following program is also valid.
下面的程序也是正当的。
Before proceeding, the program must have received a valid trigger message, and that message must contain names of both the queue manager and queue that was triggered.
要继续进行，程序必须已经接收一条有效的触发器消息，且该消息必须包含队列管理器的名称和被触发的队列的名称。
Essentially, type safety means that a program cannot perform an operation on an object unless that operation is valid for that object.
本质上，类型安全性意味着，除非程序的操作对于类型是合法的，否则就无法在对象上执行操作。
Now, when a user enters 40 CC for the vehicle data, the program must display a message saying that the entry does not fall within the valid CC range. You can show the message simply as in Listing 1.
现在，当用户输入的车辆数据为40cc时，程序必须显示一条消息，说明输入的数据不在有效的CC范围内。
Data areas must be both defined and declared in a program or function before any reference to them becomes valid.
在任何对数据区域的引用生效前都必须在程序或函数中定义并声明它。
It has a valid digital signature indicating its name and its publisher, which helps to ensure that the program is what it claims to be.
它具有指明其名称和发行者的有效的数字签名，该数字签名可以帮助确保该程序正是其所声明的程序。
Figure 2 shows the result of executing this program with valid and invalid authentication.
图2给出了使用有效身份验证和无效身份验证来执行这个程序的结果。
When using iterators, it is usually possible to write the program so that the range of code over which an iterator must stay valid is relatively short.
使用迭代器时，通常可以编写程序使得要求迭代器有效的代码范围相对较短。
After the user releases the mouse button over a valid target, the program draws a more permanent line or arrow between the two objects.
用户在有效的目标对象上释放鼠标键后，程序会在两个对象之间绘制一条永久的线或者箭头。
This hinting for potential targets can be quite subtle, or even eschewed completely when all objects in the program are equally valid targets for any connection.
这种潜在目标对象的暗示可以非常微妙，甚至当程序中所有对象对于任意连接都是有效目标时这种暗示可以完全没有。
I understand and accept that I have the accountability to purchase valid insurance for the purpose of security during the program.
本人明白并同意在参与项目期间有义务自行购买有效保险。
这是一个有效的C程序？
In general, each particular name is valid only within some possibly discontiguous portion of program text called its scope.
通常情况下，每个特定的名字仅在程序中某些被称为该名字的作用域的不连续区域中有效。
Some users have reported that the discipline of formulating valid Yacc specifications for their input revealed errors of conception or design early in the program development.
一些用户报告说，对他们的输入构造合法的Yacc规范结构的过程让他们程序设计中的概念错误提早显露了出来。
Finally, the results got from the program were compared with the judgments of subjects. Through this experiment, the method is proved valid.
根据该方法实现了一个计算程序模块，并将计算结果同人类的主观判断进行了比较，验证了该方法的有效性。
Finally, the results got from the program were compared with the judgments of subjects. Through this experiment, the method is proved valid.
根据该方法实现了一个计算程序模块，并将计算结果同人类的主观判断进行了比较，验证了该方法的有效性。
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