在开发模式时，我们为将来的模式元素创建占位符。
As the pattern develops, we create placeholders for future pattern elements.
其中最重要一个就是变量，你可以把它简单的看做是一个占位符，它其中需要存放的数据值在你写代码时是未知的。
Of these, the most important is that of a variable, which is easiest to think of as a placeholder for some piece of data whose value is unknown when the program is written.
当前字体中找不到某个适当的字符时，多数系统会显示一个某种占位符。
Most systems fall back to displaying a placeholder of some sort when an appropriate character can't be found in the current font.
ProjectArea编辑器再次被打开后，当您创建 Project Area时，您可以看到过程模板建立的默认占位符。 （图17 ）。
When the Project Area editor is open again, you can see the default placeholder iterations that the process template established when you created the Project Area (Figure 17).
您能够创建一次占位符，然后将其复制到每一个测试计划中(当计划被实际实施时，标题和其他元数据将将被修改)。
You can create the placeholder once, then duplicate it for each test plan (with the idea that the headline and other metadata will be modified as the plan is actually developed).
当模板引擎处理简单的占位符元素时，您可以用值、组件或作为页面一部分的结构来替换这些元素。
You can then replace simple placeholder elements with values, components, or structures that become part of the page when the template engine processes them.
可以将它用作占位符来存储字符串值，稍后在会话处于激活状态时对其加以利用。
It can be used as placeholder to store the string values, which can be used later until the session is alive.
当需要它时，我们将给出一个占位符字符串。
占位符链接就是与开始时未定义目标的链接。
A placeholder link is a link with an initially undefined target.
它用作一个占位符，即在需要一个语句，但是程序逻辑不需要操作时使用。
It's used as a placeholder when a statement is required, but the program logic doesn't require an action.
使用这种方法时，您在页面中定义一个占位符或一个元素，然后通过演示模板引用该占位符，在Site Are a文档中定义占位符的值。
In this case, you define a placeholder or an element in the page, and you reference that placeholder through the presentation template and define its value in the Site Area document.
生成Web服务bundle时，Mobile WebServices生成器向导也生成了带有占位符的适配器bundle。
When you generate the Web services bundle, the Mobile Web services generator wizards also generate the adapter bundle with placeholders.
目的：应用动态灰阶超声造影技术研究肝脏占位性病变造影增强的时相变化，评价其在肝肿瘤鉴别诊断中的价值。
Objective To study the enhancement phases of focal liver lesions with dynamic gray scale sonography and evaluate its value in differential diagnosis of hepatic lesions.
参数是在运行查询时所提供值的占位符。
A parameter is a placeholder for a value that is supplied when the query runs.
目的了解眶内占位性病变为固体、液体或气体时眼球突出度与眶压比值的差异。
Objective To study the change of the ratio of exophthalmos and intraorbital pressure when the space-occupying lesion of the orbit were solid, liquid or gas.
当过程的一个实例被添加到一个对象时，该数据的占位符也被创建。
When an instance of a process is appended to an object, placeholders for this data are created as well.
作为并不严格的诊断用语，当凭单一影像诊断技术不能作出确诊时，经常使用肝占位一词。
As not strict diagnostic diction, when cannot make make a definite diagnosis by onefold and video diagnostic technology, often use liver to take an one word.
作为并不严格的诊断用语，当凭单一影像诊断技术不能作出确诊时，经常使用肝占位一词。
As not strict diagnostic diction, when cannot make make a definite diagnosis by onefold and video diagnostic technology, often use liver to take an one word.
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