well defined

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You can usually add measures to well defined facts without much impact on the model at all.
您通常可以向良好定义的事实添加测度，且根本不对模型造成很大影响。
Therefore, each operator in an XML query language must be well defined for all these possible inputs.
因此，应为所有这些可能的输入很好地定义 XML 查询语言中的每个运算符。
Any mature discipline is usually organized in the form of a lifecycle, with phases that are logically separate from each other but have well defined hand-off points to move from one phase to the next.
任何成熟的规程通常都组织为生命周期的形式，其中包括多个阶段，这些阶段彼此有逻辑差别，但都有定义良好的转换点，用于从一个阶段进入到下一个阶段。

"It is a promise that as long as I am your Commander in Chief, I will only send you into harm's way when it is absolutely necessary, and with the strategy, the well-defined goals, the equipment and the support you need to get the job done,"
This chart, very boring and uninteresting but useful to say there are very well defined rules as to when you're writing code, what operators, like what syntax should get evaluated first.
这个图表，看起来很烦，很无趣，但是它很有用,有非常明确的规定,譬如，当你写代码时，就会涉及操作符的优先级。
哈佛公开课 - 计算机科学课程节选
the zeroth law, which is the common-sense law, which says that if you take a hot object next to a cold object, heat will flow from the hot to the cold in a way that is well defined, and it allows you to define temperature.
上节课我们讨论了，热力学第零定律,这一定律源自常识：如果把一个热的物体,与一个冷的物体挨在一起，热量就会以确定的方式。
麻省理工公开课 - 热力学与动力学课程节选

The task is therefore well defined and the conversation happens with a clear focus and specific timelines.
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