Each item in the repository has a unique item id, which can be used as a key to retrieve it.
存储库中的每个项具有唯一的项id，可将其用于检索项的键。
For instance, is your toy intended to be a unique item, perhaps made by one person from start to finish?
例如，你打算把你的玩具设计成为一个独特的项目，也许从始至终由一个人人来完成？
As soon as you have a unique key, check to see if there is an item in the cache.
一旦您有了一个唯一的密钥，请检查一下看看在高速缓存中是否有这个项。
The details of these patterns are unique to each item and thus could be used like a fingerprint, to provide an almost foolproof means of identification.
每个物品都有其独特的图案细节，这样它们就可以象指纹那样被用作万无一失的鉴定手段。
Many repositories have unique ways of storing native content and metadata. OmniFind, for example, does not actually store the native content for an item in its index.
许多存储库具有存储原始内容和元数据的独特方法，例如，OmniFind并不是真的将项目的原始内容存储在它的索引中。
In fact, the item ids are universally unique identifiers (UUIDs), so that an item created in one repository can be replicated to another repository and retain its identity.
事实上，项id是全局唯一标识符(universally unique identifier,UUID)，因此可以将一个存储库中创建的项复制到另一个存储库并保留其标识。
The site, which estimates its unique monthly audience at around 10 million people, earns revenue as a percentage of sales when consumers click on a photo and purchase the related item.
该网站通过消费者点击照片购买相关物品来获得一定百分比的盈利，而据测评每月该网站拥有接近一千万的浏览量。
In other words, given the source list, the path to the source item must provide a unique value.
换言之，对于给定的源列表，到源项目的路径必须提供一个惟一的值。
The first item in that list is straightforward—you merely need to capture a unique number and output the number along with the story header.
这些任务中的第一项非常容易 ——只需要产生一个惟一的编号，并与新闻标题一起输出这个编号。
Figure 10 shows a relationship between line items in which one of the roles is defined for a line item that is unique only within the Order that contains it.
图10显示了行式项目之间的关系，其中为行式项目定义的角色之一仅仅在其所属的订单内具有唯一性。
That would be enough to give a unique identification code to each item in a supermarket, along with information like how long the item has been on the shelf, Tour says.
图尔说，一旦研究成功，超市里的每件商品将都能拥有自己专属的识别代码，还能透露该商品上架多长时间等信息。
Each item requesting the data is based on the item's unique ID defined in the layout during view creation.
每个请求数据的条目都基于视图创建时在布局中为条目定义的惟一id。
To enforce that specified keys are unique with respect to the specific time period, specify the primary key constraint BUSINESS_TIME WITHOUT OVERLAPS as the last item with the list of other keys.
要确保指定的键在特定时间段内是惟一的，可以指定主键约束BUSINESS_TIMEWITHOUTOVERLAPS作为包含其他键的列表中的最后一项。
The Path property gives the unique path to the item, such as /SampleReports/Sales Order Detail, and the Type property allows you to distinguish between reports and other types of items.
Path属性提供了到项的唯一路径，例如，/SampleReports/SalesOrderDetail，Type 属性使您可以区别报表和其他类型的项。
Each element has a title, the main text, a date, and a unique key field called guid (for globally unique id), which is assigned when the item is created.
各元素都有标题、正文、日期和一个名为guid (“globally uniqueid”的缩写，表示全局惟一id)的惟一键字段，这个字段是在创建项目时指派的。
The itemNumber column provides a unique identity for each item (or row) and has an attached column-level constraint that enforces a valid value to always be supplied (NOT NULL).
itemNumber列提供了每个商品（或列）的惟一标识，它上面还有列级约束，强制要求提供正确的值（NOT NULL）。
The CSNDArchiveID property contains the unique identifier of the archived item in the backend repository.
The CSNDArchiveID属性包含后端信息库中存档项的惟一标识符。
The aggregation part of the Planet RDF code is relatively simple: it regularly polls each RSS feed in the list, derives a unique key for an RSS item, and stores changes to each item.
PlanetRDF聚集部分的代码相对比较简单，依次注册清单中的每一个rss提要，获取每个RSS条目的键值，并保存所有条目的变化。
Key-values Stores. The main idea here is using a hash table where there is a unique key and a pointer to a particular item of data.
KV存储的主要思想是一个哈希表，每个item有一个主键和特定的数据值。
To provide the full and correct molecular structure of the substance, as the substance has a unique and defined molecular structure according to item III of your notification form.
根据申报表项填写情况，申报物质有唯一确定的分子结构，所以本项应填写申报物质完整、正确的分子结构图。
Strive to bring each item made a perfect work of art, so that customers from the wave point to appreciate the works of the unique wisdom, the pursuit of artistic charm and character.
力争把每一个项目都做成完美的艺术精品，让客户从波点的作品中体会到独特的智慧、艺术魅力和品德追求。
If you are providing a new type of project item, you must provide a unique GUID string to identify it, and make this information available in your tool, type library, or documentation.
如果您提供项目项的新类型，您必须提供一个唯一的GUID字符串来标识它，并使该信息在您的工具、类型库或文档中可用。
Context items are considered unique based on their item type.
内容项目被视为唯一根据它们的项目型别。
Whatever your unique style, wear at least one item each day that makes you feel wonderful.
无论你有哪种独具一格的风格，每天至少戴一件让你感觉心情大好的饰物。
"That way I can produce a unique personalized item," he explains, "a lot of my customers are women buying presents for their husbands."
“这样我就能生产出独特的个性化的产品”，他解释说，“我的许多顾客都是女性，她们在为丈夫买礼物。”
To provide the molecular formula and molecular weight, as the substance has a unique and defined molecular structure according to item III of your notification form.
根据申报表项填写情况，申报物质有唯一确定的分子结构，所以应准确填写申报物质的分子式和分子量。
To provide the molecular formula and molecular weight, as the substance has a unique and defined molecular structure according to item III of your notification form.
根据申报表项填写情况，申报物质有唯一确定的分子结构，所以应准确填写申报物质的分子式和分子量。
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