url从一个哈希映射表中获取值。
table属性指定类的映射表
The table attribute specifies the mapping table for that class
已排序的映射表显示如下。
为使输入适应于输出结构，映射表用作最后一步。
The mapping table is used as the last step in adapting the input to the output structure.
标签的属性指定了要映射的类，以及它的映射表。
The tag's attributes specifies the class being mapped, and its mapping table in the database.
清单6修改了代码，以传递代表路线属性的哈希映射表。
Listing 6 changes the code to pass a hash map representing the attributes for a trail.
一个允许将当前表中的列映射到被映射表的主键列的表格。
A grid that allows the mapping of the columns in the current table to the primary key columns in the mapped table.
要获得有意义的结果，需要为产品ID应用一个名称映射表。
To get meaningful results, apply a name-mapping table for the product IDs.
映射表不允许您更改输入结构中列表的维数来匹配输出结构。
The mapping table does not allow you to change the dimensionality of the lists in the input structure to match the output structure.
这个哈希映射表接口对于在测试框架中指定对象而言非常有用。
This hash map interface is quite useful for specifying objects within a testing framework.
colum n属性指定当前类的映射表与目标类用作外键的列。
The column attribute specifies the column in the mapping table for the owning class that is used as the foreign key to the target class.
映射表是一种常见的构造，允许您将一个分层结构映射到另一个中。
The mapping table is a common construct that allows you to map one hierarchical structure to another.
在您指定名称、源文件和转换的目标之后，您就可以定义映射表了。
After you've specified the name, source, and target for the transformation, you can define mapping.
释放空间使底层操作系统减小对交换空间的许求并且重用内存映射表。
Releasing space allows the underlying operating system to cut down on swap space requirements and reuse memory mapping tables.
如果映射表中此列于这个类的属性名相同，column属性可以省略。
The column attribute can be omitted if the column in the mapping table has the same name as the class property being mapped.
我们可以基于上面的映射表格快速地定义一些初始规则，如清单4中所示。
We can quickly define some initial rules based on the mapping table above, as Listing 4 shows:.
ARP映射表确保该设备不会向它已经通讯过的设备重复发送ARP请求。
The ARP table ensures that the device doesn't have to repeat ARP Requests for devices it has already communicated with.
使用水、窗子、镜子或任何其他反射表面，就能将图像改变为一幅艺术作品。
Using water, Windows, mirrors or any sort of reflective surface can change an image into a work of art.
商品的名称可以通过一个名称映射表添加，该表包含商品 id及相应的描述。
The item names can be added with a name mapping table which contains the item ids and a corresponding description.
这里我们好像忘记了一点东西，我们指定了目标类，但是没有指定目标类的映射表。
Note that there appears to be something missing: We specified the target class, but not its mapping table!
如果你管理着一个小型网络，你或许可以试试使用静态ip地址和静态ARP映射表。
If you manage a small network, you might try using static IP addresses and static ARP tables.
在使用集时我们将使用英语月份名称，在使用映射表时用英语和意大利语的月份名称。
We'll use with the English months when working with the set, and English and Italian names when working with the map.
然而，它不会自动映射表示相同对象的词汇，例如英国英语和美国英语中的不同词汇。
However, there is no automatic mapping if, for example, a different term is used in British English or American English to refer to the same object.
映射表允许用户执行标量映射，也就是要执行没有组合语义且不更改结构维度的重构。
The mapping table allows the user to perform scalar mappings, which is to perform restructures that do not have set semantics and that do not change the dimensions of the structures.
因为X射线以光速运行，因此反射表明，大约在350光年前，有一个物质落入黑洞。
Since x-rays travel at the speed of light, the echo indicates that an object fell into the black hole around 350 years ago.
不同于其他并行映射工具，映射表不提供将任何分层结构映射到另一结构的完整映射功能。
Unlike other side-by-side mapping tools, the mapping table does not provide full mapping power of any hierarchical structure to another.
我们已经标识了类和类对应的映射表，接下来我们需要标识类的标识属性和映射表中的标识列。
Once we have identified the class being identified and its mapping table, we need to specify the identity property of the class and its corresponding identity column in the mapping table.
我们已经标识了类和类对应的映射表，接下来我们需要标识类的标识属性和映射表中的标识列。
Once we have identified the class being identified and its mapping table, we need to specify the identity property of the class and its corresponding identity column in the mapping table.
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