It is not required nor enforced.
它并不是要求或者强制的。
The EXTDESC keyword is not required.
EXTDESC 关键字不需要。
The reply message is not required.
回复消息不是必需的。
This behavior is not required, however.
然而，这些动作不是必需的。
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。
The update is not required for this scenario.
本场景不需要该更新。
This is not required for those programs to run.
运行这些程序并不需要这样。
Obviously, a DSL is not required in every case.
显然，并非每种情况下都需要DSL。
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。
Association is not required by the OpenID specification.
关联不是OpenID规范所必需的。
This file is not required for the operation of the library.
库操作不需要这个文件。
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。
A specific style sheet is not required here so do not specify one.
这里不需要特定的样式表，所以不要指定样式表。
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。
If a client already knows which service to use, this step is not required.
如果客户已经知道使用哪一个服务，则不需要这一步骤。
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。
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。
Often the standard will say a compiler may do something but is not required to.
标准通常会说编译器可以做某些事情但不强制这样去做。
Men have often been seen speeding up unnecessarily even when it is not required.
男司机们常喜欢踩油门，即使没有这个必要，或甚至不允许提速。
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。
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。
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