It is not required nor enforced.
它并不是要求或者强制的。
The <iw:resource> tag is not required.
<iw:resource>标记并不需要。
Disable scripting when it is not required.
不必要时禁用脚本功能。
In that case, an XML schema is not required.
在这种情况下，XML模式不是必需的。
This step is not required for IIOP implementation.
此步骤并非IIOP实现所必需的。
Set to required if applicable (default is NOT required).
如果适用，设置为必需(缺省为非必需)。
Note that this capability is not required of EJB 2.1.
注意，EJB 2.1不需要这个功能。
The parser is not required to provide a Locator object.
不需要语法分析器来提供Locator对象。
Association is not required by the OpenID specification.
关联不是OpenID规范所必需的。
This partition is not required if your computer USES BIOS to boot.
如果您的计算机使用BIOS引导，则不需要这个分区。
Using transparent images for each side of our tabs is not required.
在标签的两边都使用透明的图像是没有必要的。
In is not required, but it does give you a more friendly workspace.
此插件不是必需的，不过它的确使得工作区更为友好。
An SQL descriptor is not required when using fixed-list dynamic SQL.
使用固定列表动态sql时不需要SQL描述符。
This naming convention is not required, but is useful for consistency.
这种起名规则并不需要，但是出于稳定性的考虑还是很有用的。
This is not required if the relational ID is used when validating XML data.
如果验证XML数据时使用的是关系ID，那么这个步骤不是必要的。
Simon (1947) argues that the concept of perfect efficiency is not required.
Simon(1947)提出，完美效率的概念并不是必需的。
Source validation is not required, the reports are valid and running reports.
源验证不是必需的，报告是有效且正在运行的报告。
Similar to the real world, it is often the case that the messenger is not required.
类似于现实世界，经常不需要用到信使。
Its use is optional, meaning that a resource adapter is not required to implement it.
它的使用是可选的，这意味着资源适配器不一定非得实现它。
I won't be discussing this, as the file is not required for the scope of this article.
我不会对该文件进行讨论，因为这不在本文要求范围之内。
The class being serialized/deserialized is not required to have a default constructor.
序列化/逆序列化的类不需要有默认构造函数。
Since we do not need a submenu structure, a menu for the menu contribution is not required.
由于不需要子菜单结构，因此菜单组件的菜单不是必需的。
Note that the indention shown in Listing 7 is there only for readability and is not required.
注意，清单7 所示的缩进仅仅为了增加可读性，不是必需的。
If this is not required, the generic EJB Interface to create process instances can be used.
如果这不是必需的，则可以使用创建流程实例的通用EJB接口。
Maximum performance is not required unless you need submillisecond response time on queries.
最优性能并不需要，除非您需要查询的亚微秒级响应时间。
When strict consistency is not required, create pools of replicated and redundant read data.
在不需要严格一致性时，为要读取的数据做复制和冗余。
They are worthless when you are trying to specify what is and is not required in your message.
如果您想要指定消息中需要和不需要哪些内容，那这两样东西都是没有用的。
The submission rule is not required if you want to submit the entire form to the processing application.
如果希望将整个表单提交给进行处理的应用程序，那么就不需要提交规则。
Because XML is not required for the message format, nearly any type of message content is supported.
由于消息格式并不需要使用XML，因此几乎支持所有类型的消息内容。
Note: the section for the rule definition is not required when you modify or update a rule using the API.
注意：当您使用API修改或者更新一个规则时，规则定义的部分是不需要的。
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