Mathematics is a product of man . its laws were invented to help make sense of the universe , and are descriptive , not prescriptive 数学是人类的一个产品。它的规则被发明用于帮助人们了解宇宙，它是描述性的，而不是说明性的。
The instance data driving an xform is an xml document , optionally backed by a descriptive xml schema that permits validation of the data 驱动xform的实例数据就是xml文档，该文档可由支持数据验证的描述性的xml schema进行支持。
Mathematics is a product of man . its laws were invented to help make sense of the universe , and are descriptive , not prescriptive 数学是人类的产物。人类发现它的规则，用于帮助自己了解宇宙，因而它是描述性的，而不是说明性的。
Classes should be given descriptive names . avoid using abbreviations where possible . class names should always begin with an uppercase letter 类应该用描述性的名字，避免使用缩略语在可能的情况下。类名应该总是以大写字母开头。
Creating and using custom attributes wit - the common language runtime allows programmers to add descriptive declarations to programming elements called attributes 通过语言运行时可以让程序员增加描述性的声明到称为属性的编程元素中。
However , this implies a programming context , and it is often desirable to use a declarative approach to listening to events on a given element 然而，这种方法意味着需要一个编程环境，而我们通常期望能用描述性的方法在给定元素中实现对事件的监听。
At ibm , we use a slightly more descriptive term . we talk about e - business to describe all of the vital transactions that will be conducted on the net 在ibm公司里，我们使用一个略微更具描述性的说法：我们用电子商务来描述所有在互联网上进行的重要交易。
Choose meaningful names - explicit is better than implicit , and readability counts . there is a strong preference for clear and descriptive names , even if lengthy 选择一个有意义的名字? ?显示的比隐式的好，易读。偏向于清晰和由描述性的名字，哪怕是长点儿。
It is sometimes useful to catch an exception thrown in a helper routine and throw a new exception more indicative of the error , thereby providing more information 有时，在帮助器例程中捕获引发的异常，并引发对错误更具描述性的新异常，从而提供更多信息，这么做很有用。
The study of the legal issues of the securities investment funds is the precondition of carrying through the effective legislation and making it development rationally and legally 我国这方面的研究主要集中于经济学方面，对于证券投资基金的研究仅限于描述性的，缺乏系统独到的见解。
