This can be achieved with conditional requirements.
这时可以使用条件要求。
When working with conditional code, you often know which branch is most likely and which is not.
在开发人员使用有条件代码时，常常知道最可能执行哪个分支，而哪个分支很少执行。
For dynamic components: use an appropriate Cache-Control header to help the browser with conditional requests.
动态组件：使用一个适当Cache- Control获得帮助浏览器的条件请求标头。
To me, that’s an acceptable issue, and not really worth adding another CSS file with conditional logic in the markup.
对于我来说，这个问题还可以接受，并不值得通过再加css控制来修复它。
You will still have to provide fall-back support for IE6, however, either with conditional comments or through graceful degradation.
尽管如此你仍不得不通过条件注释或优雅降级的方法对IE6提供支持。
In this paper, a method of designing the digital controller for real-time computer control hydraulic force system with conditional output feedback is presented.
本文给出用于实时计算机力控制系统的、具有条件输出反馈的数字控制器的设计方法。文中讨论了条件反馈控制器的基本原理、结构以及设计方法。
The WS-BPEL representation of the process (Figure 2), is similar to the business model in that there are steps which are wired together, along with conditional branching logic.
流程的WS - BPEL表示形式(请参见图2)与业务模型类似，因为存在连接在一起的步骤以及条件分支逻辑。
In the previous picture, you can recognize some logical constructs that help with structuring the flow with conditional execution (the Switch activity) and with cycles (the Loop).
在前面的图中，您可以辨认出一些逻辑结构，这些结构可以使用有条件执行(Switch活动)和周期(Loop)帮助构建此流。
To provide a great experience with conditional formatting inside PivotTables, we now associate the conditional formatting rules to the structure of the PivotTable instead of to the cells.
为了在数据透视表里面提供一个强大的条件格式体验，我们现在将条件格式的规则与数据透视表联系起来，而不是与单元格了。
In this paper, a new model-transmissibility function model with conditional heteroscedasticity is proposed, and its conditions as well as the fitting and forecasting effect have been studied.
本文对残差具有异方差性的传递函数模型提出了一种新的模型——条件异方差传递函数模型，并对建立此类模型的条件和拟合及预测效果进行了研究。
You can add conditional statements and iteration to tests, which can help if you want to run tests with a set of data.
您可以添加条件语句和迭代以进行测试，如果您想使用一个数据集运行测试，这个功能就会有所帮助。
The trivial differences could be handled with simple conditional branches (" if account is new, then... ") in the workflow.
这些细微差别可以在工作流中用简单的条件分支(“如果帐户是新的，则…”)处理。
Once one of these refinements is executed, all of the nested mappings associated with the conditional refinement will be performed during runtime.
一旦这些细分中的某一个得到执行，与该条件细分相关的所有嵌套映射都将在运行时得到执行。
It greatly enhances the build process by letting you control program flow with looping constructs and conditional logic.
它让您用循环构造和条件逻辑控制程序流，极大地增强了构建过程。
As part of the new Deal, the World Bank is providing conditional cash transfers, food-for-work programs, and is assisting with new plantings, he said.
作为这个新政的一部分，世界银行已经开始提供有条件现金转移和以工代赈方案，并开始援助新的种植活动，他说。
David Cameron's coalition cabinet has reaffirmed this pledge, conditional on being presented with "a satisfactory business case" before the end of the year.
大卫·卡梅伦的联合内阁也重申了这一承诺，将在年底之前会有条件的兑现，以使其成为“一个成功的商业案例”。
That is itself in keeping with an emerging international trend to use "conditional cash transfers" to solve intractable social problems.
其本身也与利用“条件化资金转移”来处理棘手社会问题的国际新趋势相接轨。
Although Capello spoke in conditional terms last week about his continued involvement with England after the World Cup, the Football Association is certain he will stay on.
尽管上周卡佩罗表示自己世界杯后继续执教英格兰队的条件，但是英足总依旧确信他会留任。
Conditional constructs such as if, switch, while, and for statements are each given a value of 1, along with exception paths.
每一个条件构造，如if、switch、while和for语句，都被分配一个1值和异常路径。
Other articles discussed the conditional and looping features of the Python language and how they work together with the container data types to simplify programming tasks.
其他文章讨论了Python语言的条件和循环特性，以及它们如何与容器数据类型进行协作来简化编程任务。
XQuery's ability to transform XML output can be combined with its built-in support for conditional logic to reduce the complexity of application code.
XQuery的XML输出转换功能可以与它内置的对条件逻辑的支持相结合，以减少应用程序代码的复杂性。
We can use conditional expressions in a Data Item to mask confidential information replacing these with specific characters.
可以在DataItem 中使用条件表达式屏蔽机密信息 —使用特定字符替换机密信息。
When used along with the Mutex, pthreads conditional variables provide event-based synchronization between threads, but they are synchronous.
当与互斥一起使用时，pthreads条件变量可以在线程之间提供基于事件的同步机制，不过这是同步的。
Conditional if statements start with if and end with the letters reversed (fi).
条件型if语句以if开头，以反写的字母(fi)结尾。
It's fairly simple to do this with a quick conditional inside your click handlers. Here's an example jQuery compatible snippet.
这是一个相当简单的做法，在你的单击处理程序内部使用一个快速的条件判断。
This means that XQuery consists of several kinds of expressions, such as path expressions, conditional expressions, and element constructors, that can be composed with full generality.
这就意味着XQuery是由多种表达式构成的，如路径表达式、条件表达式以及元素构造函数，是完全通用的。
To write a stylesheet that will work with 1.0, 2.0, and a future version, then you can combine conditional and use-when to avoid static errors no matter which version of processor you are using.
为了编写可用于1.0、2.0以及将来版本的样式表，可以结合使用条件和use - when来避免静态错误，不管是用什么版本的处理程序。
To write a stylesheet that will work with 1.0, 2.0, and a future version, then you can combine conditional and use-when to avoid static errors no matter which version of processor you are using.
为了编写可用于1.0、2.0以及将来版本的样式表，可以结合使用条件和use - when来避免静态错误，不管是用什么版本的处理程序。
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