经常使用的列值的出现次数。
函数的作用是：查找子字符串出现次数。
The substr_count() function counts the number of times a substring occurs in a string.
出现次数——可以定义一个或多个这些元素。
这是实体的数据元素之间不同值的数量和重复出现次数的计数。
This is a count of the number of distinct values and the frequency of the occurrence of duplicates across the data elements of the entity.
它需要划分文本，分解为一个数组，并计算每个单词的出现次数。
It needs to strip the text, break it into an array, and count the occurrences of each word.
当用户提交一个页面时调用的函数实际上用于验证最少的出现次数。
The function that is called when a user submits a page actually validates for minimum occurrences.
在此类应用程序中，要求用户输入出现次数最少或出现次数最多的多组或多值属性。
In such applications, you will require the user to enter certain minimum or maximum number of occurrences of multigroup or multivalue attributes.
多重集：一个数学上的概念，表示了一种从集合中元素到出现次数只见的映射关系。
A mathematical entity that represents a mapping between the elements of a set and the number of times they appear.
频率分布存储在元数据储存库中，其形式为一组不同的值和与之相关的出现次数计数。
The frequency distribution is stored in the metadata repository as a distinct set of values with their associated count of occurrence.
在count示例程序中，它使用一个stem变量将单个字映射到该字的出现次数。
In the count example program, a stem variable maps a word to the number of times that word occurs.
不过，目前他们的面积和出现次数都在上升：目前发现的死水区域已经有超过400个。
But they are increasing in both size and number: dead zones have now been reported in more than 400 areas.
举例来说，一种简单的分类方法可以跟踪与标签相关的词，以及这些词在某个标签中的出现次数。
For example, a simple approach to classification might keep track of the words associated with a label, as well as the number of times those words are seen for a given label.
我没有将这些特性添加到下面的示例，因为我认为它们在上面示例中的出现次数已经足够多了。
I'm simply not adding those features to the examples below, because I think there are enough occurrences of them in the examples above.
事件的数量非常重要，因为它是一个加权列表所以“波士顿”应该出现次数超过“时间”或其他类似的术语。
The number of occurrences is very important because it is a weighted list so "Boston" should appear more times than "time" or another similar term.
搜索引擎为网站排名时，主要考虑两个因素：搜索短语在网页中的出现次数、与网页进行连接的其它网站数量。
When ranking sites, the search engines consider two main factors. How many times does the search phrase occur on your page, and how many other quality sites link to your page?
关于null值出现次数的信息存储在系统编目视图syscat .COLUMNS中的NUMNULLS列中。
The information about occurrences of NULL values is stored in the NUMNULLS column of the system catalog view SYSCAT.COLUMNS.
传统的低维图像关联规则没有考虑纹理要素以及对象的重复出现次数、对象的面积大小，与此相关的图像知识无法挖掘出来。
Texture, recurrent number of object and the area of object are not taken into account in conventional low-dimension image association rules. So the relevant image knowledge can't be mined out.
其他的能将网友送进这个网址，出现次数较多的词汇有婚姻，伪君子，尊敬，激励和仆从。韦氏公司并没有公布原始搜索数据。
Other words that sent people to the site in high numbers include marriage, hypocrite, respect, inspiration and minion. The company does not release raw numbers of lookups.
现在，您可以获得一个多行的结果集，其中每一行表示一个唯一值（红色、蓝色和绿色），并且得到该值在表中的出现次数计数。
Now you get a multi-row result set, each row relating to a unique value (red, blue, and green), and a corresponding count of the occurrences of that value in the table.
比如，2004年印度洋海啸和2011年日本海啸后，tsunami这个单词出现次数飙升，西班牙语中同样出现量飙升的单词是maremoto，说明这两个单词有同样的含义。
For example, the word "tsunami" spiked in 2004 and 2011 following the Indian Ocean and Japanese events, as did the equivalent word in Spanish, maremoto, suggesting that they mean the same thing.
吮吸次数的增加表明婴儿注意到或是喜爱眼前出现的物品。
Increases in the number of sucks were used as an indicator of the infant's attention to or preference for a given visual display.
他调查了在有影响力的研究中人们作为第一作者出现的次数等等。
He examined how many times people were first authors on influential studies, and the like.
当新的刺激出现时，心脏和呼吸监测仪为研究者提供其心跳或呼吸的次数。
Heart and respiration monitors provide the investigator with the number of heartbeats or breaths taken when a new stimulus is presented.
其中之一是单词计数器，它统计某一单词在几个文件中出现的次数。
One of them is a word counter, which counts for certain word occurrence in several files.
输出是一个包含元组的文件，元组表示单词和它在输入中出现的次数。
This output is emitted as a file of tuples, representing the word and the number of times it appeared in the input.
指定日志文件的路径，就可以看到一个慢速查询的排序后的列表，并且还显示了它们在日志文件中出现的次数。
Specify the path to the logfile, and you're given a sorted list of the slow queries, along with how many times they're found in the log.
亲本越适合，在亲本种群中出现的次数就会多，因而就会有更多机会繁殖下去。
The more fit a parent is, the more chances it will have to reproduce by being in the parent population multiple times.
就像博客中的标签一样，每个关键字出现的次数越多，图画中它的字体就越大。
Just like with tags on blogs, the more repetition he encounters for each keyword, the bigger it appears in the final composition.
量词，可以用量词指定子模式出现的次数。
Quantifiers that allow you to specify the number of occurrences of a subpatterns.
这个作业的作用是计算单词在输入文件中出现的次数。
Recall that the point of the job is to calculate the number of times words occurred in the input files.
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