A lot of these are listed as optional.
很多这些被列出象任意。
Clothes hook is not furnished; available as optional accessory.
不配置衣帽钩，但可作为备选附件选配。
This module should be used as optional in case of session module.
在使用会话模块的情况下，应将这个模块用作可选模块。
Notice how one of the steps—adding a middle name—is marked as optional.
注意其中一个步骤 —添加中间名字 —是如何被标记为可选的。
The source and server-side metadata models are defined as optional packages.
源模型和服务器端元数据模型被定义为可选包。
Various technologies, such as Swing, were introduced as optional extensions.
例如Swing等各种技术都是作为可选的扩展被引入的。
The (?) (0 or 1) and (s?) (0 to n) modifiers are also available as optional keywords.
(0或1)和(s ？)(0到N)修饰符作为可选关键字来使用。
For example, the flow layout supports headers and footers as optional supplementary views.
比如，流动布局支持页眉和页脚作为增补视图。
Mark creates the meeting with Ray and Daria as required attendees and the rest as optional.
在创建会议时，Mark 将Ray和Daria 标为必需的参与者。
Root features and any feature defined as optional can be disabled in the current configuration.
根功能部件，以及任何定义为可选择的功能部件，都可以在当前配置中禁用。
The DeploymentDescriptor class treats the qname attribute as optional in type mapping declarations.
DeploymentDescriptor类把qname属性作为类型映射声明中的可选项。
But it is added as optional so XML data without the cell-phone element is also validated successfully.
但该元素作为可选元素添加，以便没有cell - phone元素的XML数据也可以成功通过验证。
The next block defines the concept f: product, specifying a preferred label as well as optional alternates.
下一个代码块定义了概念f：product，指定了需要的标签和可选的选项。
You can even specify values as optional, and define formatters for converting simple values to and from text.
您甚至可以将值指定为可选，并定义格式化程序用于简单值与文本之间的转换。
For example, matches can be described as optional, which makes it much better than SQL at querying ragged data.
例如，可以将匹配描述为可选，这使它在查询粗糙的数据时比SQL更合适。
Since the SOA principles above do not strictly require these components, let's treat them as optional components.
由于上述SOA原则对这些组件并没有严格的要求，所以我们可以将它们视为可选组件。
However, it is also possible to declare any of them as optional by setting the 'required' attribute to 'false'.
然而，也可以将required属性值设置为false来声明它们中的任何一个。
It has several other work products as optional inputs, such as use-case realization, analysis class, glossary, and so on.
它也包括了可选择输入的一些其他工作产品，像用例实现，分析类，术语表等等。
You can also see that we have identified three attributes as optional using UML multiplicity [0..1], as shown in Figure 11.
您还会看到我们用UML多重性[0..1]将三个属性置为可选的，如图11所示。
Integrated child seats are also available for the Sharan (for up to four children) as optional equipment for 220 euros each.
综合产物的座位，也可用于Sharan(长达四个孩子)作为可选设备每220欧元。
On top of that, we introduced the new Codan static analysis framework as optional component to provide semantic error reports ahead of compile time.
在此基础之上，我们引入新的Codan静态分析框架作为可选组件，在编译之前提供语义错误报告。
Since the configure mode is defined as optional within the JSR 168 API, this portlet mode must also be defined by a <portlet-mode> tag within a
因为在JSR 168API 中还定义了configure模式作为一个选项，在
You can designate parameters as optional or required in the XSL: param element, except when that element is a child of XSL: function, in which case they are always required.
可以在xsl：param元素中指定参数是可选或必须的，除非该元素是xsl：function的子元素，这种情况下参数是不可少的。
The disconnected inputs must be either put into a separate input criterion or marked as optional by setting their minimum multiplicity to zero to allow the process to execute.
未连接的输入应被放入某个单独的输入条件，或是标记为可选，即把它们的最小增殖次数设置为零，以允许执行流程。
By setting Peking Opera as an optional course, students may have more freedom to decide whether to take it or not.
通过将京剧设置为选修课，学生们可以有更多的自由决定是否选修京剧。
Is that optional course as hard as everybody says?
那门选修课真像大家说的那么难吗？
Other bath accessories, such as a loofah sponge, or bath gels, or potpourri, are very optional.
洗澡需要的其他东西，比如丝瓜络、沐浴液、精油都是可选的。
If you see humor as an optional form of entertainment, you're missing some of its biggest benefits: humor makes average-looking people look cute and uninteresting people seem entertaining.
如果你认为幽默只是一种可有可无的娱乐形式，那你就忽略了幽默最大的好处：幽默能让长相平平的人看起来更可爱，也能让呆板无趣的人看起来更有趣。
According to Professor Johnson, we don't have to read the book if we don't want to, as it is optional.
根据约翰逊教授的说法，我们不想读这本书，就不必读，因为它是选读的。
According to Professor Johnson, we don't have to read the book if we don't want to, as it is optional.
根据约翰逊教授的说法，我们不想读这本书，就不必读，因为它是选读的。
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