Many species appear to remain unchanged in the fossil record for millions of years—a situation that seems to be at odds with Darwin's model of continuous change.
许多物种似乎在数百万年的化石记录中都保持不变——而这种情况似乎与达尔文的持续变化模型不一致。
The second loop iterates through all relationships in the Active Record model and renders the appropriate partial for each relationship.
第二个循环在活动目录模型中的所有关系上迭代，并呈现每个关系的适当部分。
A primary key is a special thing in the relational model: It must be unique to each record (row) of a table.
在关系模型中主键是特殊的事物：它对于表的每个记录(行)必须是唯一的。
Record labels sound terribly innovative when they talk about bundling music together with broadband subscriptions. Yet this model comes from television.
唱片公司在讨论将音乐产品和网络付费业务捆绑，这听起来相当新颖，而这种模式就来自于电视。
Record companies and consumers alike have overwhelmingly accepted its business model.
唱片公司和消费者都已彻底接受了它的商业模式。
If the record companies are understandably torn about how to respond to a new distribution model, the television firms are simply wrong.
在如何应对新分发模式一事上，唱片公司左右为难尚可理解，电视公司却大错特错。
The framework queries two sources of metadata: the Active Record model and a custom metadata file for each model object.
框架查询两个元数据源：活动记录模型和每个模型对象的定制元数据文件。
The new data has no classification (in this case, no checks on heart disease have been made) and the scoring process assigns a prediction to each new record according to the mining model.
新的数据没有分类别（这里是指还没有做过心脏病检查），评价过程根据挖掘模型将一个预测赋给每个新的记录。
After a decade of chaos, has the record industry finally hit upon the right new business model?
经过十年混乱之后，唱片行业能否在新模式下得以重生？
And that leads to the failings of the Electronic Health Record model - it is all about databases.
这导致了电子病历模型的失败-都是数据库的错。
A second, more subtle reason is that the model, not the diagrams, becomes the expression of record for the structure, semantics, and behavior of the system.
其次，更细微的原因是模型，不是图，成为系统的结构、语义和行为的记录的表示。
You can find a list of the Active Record model validations that can be defined in the class scope here.
在这里可以找到可以在类范围中定义的ActiveRecord模型检验列表。
Active Record is an object-relational mapping (ORM) that follows a standard ORM model.
ActiveRecord是遵照了标准的or m模型的对象关系映射(object - relational mapping,ORM)。
Defining and refining the address record model.
定义并改进地址记录模型。
A comment in this model is a record in ClearQuest rather than a concatenated string used in the notes package.
ClearQuest中这种模式中的评论是一个记录，而不是运用在注释包中的连接字符串。
Finally, update the MStudent model with a function to delete the record.
最后，用一个函数更新MStudent模型来删除此记录。
YouTube could record those moments of salience, could use them to build a model, a data shadow, which could reinforce your own ability to make decisions about who should see what.
YouTube也可以把这些传播卓越的瞬间记录下来，用这些信息建立一个模式—一个信息阴影—而这个阴影可以帮你加强自己在决定“谁应该看什么”时的能力。
The CIM data model offered two different ways to record meter readings: reading and interval-reading.
CIM数据模型提供了两种不同的记录仪表读数的方法：reading和interval - reading。
view accessing the Active Record Trail model and looping through each trail in @trails with the <% for trail in @trails %> command.
您可以看到访问活动记录Trail模型并用 <%for trail in @trails %>命令在 @trails 中的每条路线上循环的 list.rhtml视图。
During the creation of an OLAP model, a data log file makes a record at.
在olap模型创建阶段，日志文件会在以下位置生成记录。
Its use of a subscription model comes at a time when CD profits are lagging and larger social-networking sites are negotiating with record labels to incorporate music streaming.
MOG采取了订阅服务的模式，眼下CD出版业盈利状况不佳，更大的社交网站则在与唱片公司商谈添加网上收听的事宜。
Model and map additional ClearQuest record types referenced by the change request record type.
变更请求记录类型会应用模型与映射其他的ClearQuest记录类型。
Active Record users do not always need to change model objects as the data model changes.
ActiveRecord用户并不总需要随着数据模型的改变而改变模型对象。
ActiveScaffold will create SQL that searches all varchar columns for the model so that entering a term like "ham" will find my user record based on my last name.
ActiveScaffold会创建一条sql语句为模型搜索所有的varchar列，这样输入诸如“ham”之类的条件就可以找到基于姓氏的用户记录了。
By saying nothing more than acts_as_tree in your ActiveRecord model, you can dynamically add methods to manage the tree, such as methods that retrieve the parent record or child record.
通过使用ActiveRecord模型中的acts_as _ tree，可以动态地添加方法来管理树，比如检索父记录或子记录的方法。
It does not currently include Active Record, the powerful domain model library on which Rails database model objects are built.
当前的版本还未包括ActiveRecord，这是Rails数据库模型对象赖以为根本的强大的领域模型类库。
In fact, certain models even posses the ability to record audio through their headphone jacks, meaning it's easy to turn an old model into a cheap, high-quality audio recorder.
事实上，某些旧型号甚至只是具备通过耳机插孔录制音频的能力，这意味着旧型号的MP3可以很简单的变成一个便宜而高品质的录音设备。
A model, actor and singer, her business interests include fashion design, a record label and a perfume range.
作为一个模特、演员和歌手，她的商业兴趣包括时装设计，唱片公司和香水。
Powered by a Volkswagen 1.6-litre common rail TDI engine developing 105 PS, the Passat BlueMotion used for the record attempt was a standard production model.
配备有大众汽车1.6升共轨t DI开发型105马力引擎，用于破纪录的帕萨特蓝色精灵属于标准生产车型。
The figures are based on a reduced record set constrained by model filters beyond the user's control.
这些数字是基于一个缩减的数据集，而这些数据集是由模型过滤器所限制，超越了用户控制范围。
应用推荐