The East Canary Islands block is an example of an island inlier with a morphologically well defined relation to its adjacent continent.
东加那利群岛地块是内围层的一个例子已完全确实,它在地形上与相邻的大陆有关。
单词 | Well defined |
释义 |
Well defined
英语例句库
The East Canary Islands block is an example of an island inlier with a morphologically well defined relation to its adjacent continent. 东加那利群岛地块是内围层的一个例子已完全确实,它在地形上与相邻的大陆有关。
原声例句
科学大揭秘 It revolves around Earth in a well defined orbit. 它在一个明确的轨道上围绕地球公转。 生活大爆炸 第3季 It's a time of day I invented. It better defines the ambiguous period between afternoon and evening: preevning. 是我发明的描述时间方式 更好地定义了个模棱两可的时段 下午和晚上之间就是傍晚。 金钱地球 And does that competitive landscape look well defined? 这种竞争格局看起来是否明确? 休伯曼实验室 And we will better define what right means a little bit later. 稍后我们将更好地定义权利的含义。 Osmosis-神经 There's usually a well defined sensory level meaning that the symptoms only affect the body below a certain level of the spinal cord. 常可以确定一个感觉平面,只在此脊髓平面以下出现症状。 SciSHow 快问快答小科普 And the probability of precipitation could be better defined by meteorologists, and better understood by the public. 降水的概率可以由气象学家更好地定义,并为公众更好地理解。 自然百科 And yet, we have a relative strong, very well defined magnetic field that appears to have a source that is located deep in the planet. 然而, 我们有一个相对很强, 非常好定义的磁场, 似乎有一个来源位于地球深处。 哲学问题 It can, therefore, at best define one sort of knowledge, the sort we call derivative, as opposed to intuitive knowledge. 因此,它最多只能定义一种知识, 即我们称之为导数的知识, 与直觉知识相对。 西南联大英文教本 Since firm texture is what is wanted, not embroidery or superposed ornament, beauty has been well defined as the purgation of superfluities. 由于需要坚固的质地, 而不是刺绣或叠加的装饰, 因此美被明确定义为对多余物的净化。 2015 English Cafe Both of these adverbs mean " in spite of what has just been said" or " in spite of some fact." They are perhaps best defined through examples. 这两个副词的意思是“尽管刚刚说过什么”或“尽管有一些事实”。也许最好通过例子来定义它们。 物种起源 On these principles, the nature of the affinities, and the generally well defined distinctions between the innumerable organic beings in each class throughout the world, may be explained. 根据这些原则, 可以解释亲缘关系的性质, 以及全世界每一类无数有机生物之间通常明确定义的区别。 Listen to this 3 英语高级听力 Now this is very disturbing, because it leads you to recognize the impermanence of your own existence, the illusion that we are a well defined, you know, isolated self that we have a well defined, isolated ego. 这让我们身为困扰,因为这会让我们认识到自己存在的无常性,让我们有一种错觉,以为自己是一个经过界定的隔绝存在,一个与世隔绝的自我。 10天世界奇妙之旅 Not only I had the chance to live the dream and drive on long, well defined roads, but I was also surrounded by raw natural beauty and memorable landscape. 我不仅有机会实现梦想并在漫长而清晰的道路上行驶, 而且还被原始的自然美景和令人难忘的风景所包围。 双城记(原版) Crouching down in a corner, peeping up the lane, the next object that Young Jerry saw, was the form of his honoured parent, pretty well defined against a watery and clouded moon, nimbly scaling an iron gate. 小杰瑞蹲在一个角落里,往巷子里往上看,接下来看到的是他尊贵的父母的身影,在水月和阴云的映衬下,轮廓分明,敏捷地攀登铁门。
中文百科
定义良好 Well-defined(重定向自Well defined)
在数学里,术语定义良好(定义良好的 well-defined,名词 well-definition)用于确认用一组基本公理以数学或逻辑的方式定义的某个概念或对象(一个函数,性质,关系,等等)是完全无歧义的,满足它必需满足的那些性质。通常定义是无歧义地表述,明白地满足它们所需的性质。但有时候,使用任意选择的方式来陈述定义是经济的,这时我们便要验证定义与选择无关。另一种情形,所需的性质可能不都是显然的,这时要验证它们。这些问题通常来自函数的定义。 譬如,在群论中,术语“定义良好”经常用于处理陪集时,陪集空间上的函数经常选取一个代表来定义:这时非常重要的是验证无论选取陪集的哪个代表,就像算术运算一样(比如,2加3总是5)我们总得到同样的结果。
f(x1)=f(x2) 只要 x1~x2,则定义有意义,从而 f 在 X/~ 上定义良好。函数在 X/~ 上有不同定义域,应该视为不同的映射
英语百科
Well-defined 定义良好(重定向自Well defined)
In mathematics, an expression is called well-defined or unambiguous if its definition assigns it a unique interpretation or value. Otherwise, the expression is said to be not well-defined or ambiguous. A function is well-defined if it gives the same result when the representation of the input is changed without changing the value of the input. For instance if f takes real numbers as input, and if f(0.5) does not equal f(1/2) then f is not well-defined (and thus: not a function). The term well-defined is also used to indicate whether a logical statement is unambiguous. |
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