森林里的日光质量随着植被密度、太阳照射角度和天空云层数量变化而变化。
The daytime quality of light in forests varies with the density of the vegetation, the angle of the Sun, and the amount of cloud in the sky.
分层数据结构可很好地映射为文档。
他首先查看底层数据库汇总表。
当底层数据改变时，可以重新生成它。
When the underlying data changed, it could simply be regenerated.
几年之后，他逐渐将层数扩展到了七层。
您应该根据搜索所需的粒度来选择层数。
You should pick the number of tiers you need based on how fine-grained you want to make your search.
过多的访问底层数据库。
如果你已经习惯了，那么增加爬楼梯的层数。
As you get used to it, increase the number of floors you use the stairs for.
这意味着用户不能直接访问底层数据库对象。
This does not imply that the user has direct access to the underlying database objects.
它们依靠SQL查询来操纵底层数据并提供输入。
They rely on SQL queries to manipulate the underlying data and provide input.
该标注执行类名与底层数据库表之间的实际映射。
This annotation performs the actual mapping between the class name and the table in the underlying database.
当用户进入表单的其他部分时，再获取底层数据。
As the user goes through other parts of the form, the underlying data can be fetched lazily.
直接公开底层数据库功能的接口(原生sql)。
An interface that directly exposes the capabilities of the underlying database (Native SQL).
相反，他们倾向于使用窗体与底层数据库数据交互。
Rather, they tend to use forms to interact with underlying database data.
描述关系的每个链接转化成分层数据中的一个列表。
Each link that describes a relation turns into a list in the hierarchical data.
这是JPA的中心类，并提供对底层数据库的访问。
This is a central class in JPA and provides access to the underlying database.
这种命名惯例来自于一种以多层数据叠加形成地图。
This naming convention derives from a map being built with multiple layers of data placed on top of one another.
该软件分析文件中的数据并将其保存在底层数据库中。
The software analyses the data in the files and places this in an underlying database.
它是一个组件，用户可以使用它来更改底层数据模型。
It is the component that a user can manipulate to change the underlying data model.
其缺点在于会减少对弹出窗口布局和底层数据的控制。
The disadvantage is that you have less control over the layout of the pop-up and the underlying data.
程序集数据模型用于描述贯穿程序集步骤的分层数据。
The assembly data model is used to describe the hierarchical data that flows through the assembly steps.
这一切都没有改变底层数据，只是调整了显示方式而已。
This was all accomplished without changing the underlying data, just the presentation.
一个数据集成平台需要将服务实现与底层数据源分隔开。
A data integration platform has to insulate services implementation from the underlying data sources.
但HQL的确可以让你直接向底层数据库传递本地查询。
But HQL does enable you to pass native queries to your underlying database.
对底层数据库对象的访问只能通过包中的特定语句进行。
The only access to the underlying database objects is through the specific statements in the package.
要实际修改底层数据源，仍然需要一些用户定义的代码。
To actually modify the underlying data source, some user-defined code is still required.
如果底层数据源未提供XML数据，YQL会进行转换。
If the underlying data source does not provide XML data, YQL does the conversion.
命中率与缓存大小、底层数据的数量和数据访问模式有关。
The hit ratio is a function of the cache size, the amount of underlying data, and the data access pattern.
一种补充方法是，当底层数据改变时，让缓存的数据项失效。
A complementary method is to invalidate the cached entry when the underlying data changes.
图表显示被连接到底层数据，因此任何改动都能立即反映出来。
The chart display is linked to the underlying data so that any changes made are reflected immediately.
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