The essential use case does not make these references.
基本用例不引用它们。
Comparing a system use case and an essential use case.
比较系统用例和基本用例。
The system use case has more steps than the essential use case.
系统用例的步骤比基本用例的步骤多。
A project manager may use essential use cases to determine how many iterations will be required.
项目经理可以使用基本的使用用例来确定需要多少次迭代。
To solve the above problems, this paper puts forward essential use case analysis technology.
本文提出了一种本质用况分析技术，它很好地解决了上述问题。
Essential use cases are abstract, lightweight, technology-free dialogues between user and system.
本质用例描述了用户与系统间抽象、轻量级和技术无关的对话过程。
There are two basic flavors of use case models: essential use case models, and system use case models.
用例模型有两种基本风格：基本用例模型和系统用例模型。
Handling changes, actions, or user interaction in other views is the essential use case of delegates.
处理变化，行动，或在其他视图中的用户交互是必不可少的使用情况代表。
An essential use case model, often referred to as a business or abstract use case model, models a technology-independent view of your behavioral requirements.
基本用例模型，通常称为商业或抽象用例模型，对行为需求的与技术无关的视图建模。
Economic law does not deny market regulations, actually, it corrects the inherent short coming of market regulations so as to defend the essential use of market regulating.
经济法不是要否定市场调节的作用，而是为了纠正市场调节的固有缺陷，以维护市场调节的基础性作用。
An essential use case, on the other hand, is based on the purpose or intentions of a user, rather than on the concrete steps or mechanisms by which the purpose or intention might be carried out.
另一方面，基本用例基于用户的目的或意图，而不是基于实现目的或意图可能依据的具体步骤或机制。
However, many students have difficulty in writing the thesis statement, mainly because they are not sure of its rules and requirements, nor certain of its writing procedure and essential use.
论题句是英语专业毕业论文写作中的一个重要环节，在一定程度上，它直接影响论文写作的质量。
She decided that she was going to try to just use cash for two weeks to make all of her essential purchases and see what that would do to her spending.
她决定尝试在两周内只用现金来进行所有必需的采购，看看这会对她的消费产生什么影响。
But the essential logic could use some illustration.
但必要的逻辑会用到一些例子。
The serializer is not technically part of the XSLT processor, but it is essential for practical use.
从技术上看，串行化器并不是XSLT处理器的一部分，但它在实际使用中是必不可少的。
I used several working examples to demonstrate the use of essential JCSP constructs such as processes, channels, and guards.
我用了几个实例演示了基本的JCSP构造(例如进程、通道和警卫等)的使用。
However essential, farming is not the most lucrative use of water.
无论粮食是多么必要，耕地用水的效益是不高的。
The essential criterion for deciding whether to break use cases apart is whether their goals are different.
决定是否分隔用例的本质标准是他们的目标是否不同。
What we have to get away from is the comprehensive and explicit nature of the interface and start to use essential information that will reduce the burden of explicit interaction.
我们需要改变用户界面本身的广泛性和含糊不清，开始利用必要的信息来加强清晰明确的互动。
Besides an electric fan, a folding desk for use in bed is also essential for dorm life.
除了电风扇，床上折叠桌也是必不可少的寝室生活用品。
essential medicines quality, supply and rational use;
基本药物的质量、供应与合理使用；
Saturated Fats: Strengthen the immune system. Needed for proper use of the essential fatty acids.
饱和脂肪：饱和脂肪能够加强机体的免疫系统，在对基本脂肪酸的目的性使用时需要用到饱和脂肪，例如离开了饱和脂肪，肺就不能正常发挥作用。
Through this article you will be provided with some essential information about the use of dietary supplements during pregnancy.
这篇文章为你提供一些在怀孕期间有关营养补充剂使用的必备的信息。
Such knowledge is not needed for everyday use, but is an essential method of philosophical analysis.
这样的知识在日常生活中并没有用，但却是哲学分析的重要方法。
Users should understand the cause and the resolution of metatype conflicts. This becomes essential when you want to use more than one custom metaclass.
用户应该理解元类型冲突的原因和解决方案，当您想使用多个定制的元类时，这将非常必要。
This year, World Food Day 2002 had a special meaning as FAO joins with the international community to promote the sustainable use of this essential global resource.
今年，由于粮农组织与其他国际社会共同促进这个全球重要资源的可持续性利用，2002年的世界粮食日将具有一个特殊的意义。
Use of checklists were essential to keeping everyone in sync.
检查表的使用对保持所有人同步很关键。
A free operating system is essential for people to be able to use computers in freedom.
一个免费的操作系统是人们可以自由使用计算机的基础。
A free operating system is essential for people to be able to use computers in freedom.
一个免费的操作系统是人们可以自由使用计算机的基础。
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