This article describes a new dynamic key-function based on data item encryption and proves the security of this algorithm.
本文提出了一种新的基于数据项加密的动态密钥生成算法，并对此算法的安全性进行了证明。
The key produced by the key-function is used to encrypt every data item, so this key-function is very important for the security of the data.
密钥生成函数产生的密钥直接对数据库中每个数据项进行加密，因此该函数对数据的安全具有非常重要的作用。
Consider outside business partners that provide or request some sort of business function key to your business. In that case, the scope of the service is defined for you.
考虑这样一种情况，一些外部的合作伙伴提供或请求某种对您的企业来说非常关键的功能，那么这也就为您确定了服务的范围。
For example, in our applications, the standard error message will be displayed in the message line, just above the function key line in the lower part of screen.
例如，在我们的应用程序中，标准错误信息将显示在消息行中，正好在屏幕下部的功能键显示区之上。
Recognising that this is a key function a much improved test capability is now provided through a new test client.
人们认识到这是一个非常关键的功能，现在通过新的测试客户端提供了经过精心改进的测试功能。
A key function for the governance board is to outline the nature and characteristic of communities which should be in the repository.
治理委员会的一个关键职能是应该位于存储库中的团体的本质和特征。
Thus, determining the level of granularity in what to expose as a service and how to expose it is a key job function of this role.
因此，确定作为服务公开的粒度级别以及如何进行公开是此角色的主要工作职能。
For each row that satisfies the filter condition, the database server applies hash function to the key and proves the hash table to find a match.
在满足筛选器条件的每个行中，数据库服务器将对键应用哈希函数，并探测哈希表以查找匹配的键值。
Routing is a key function to enable service virtualization.
路由是启用服务虚拟化的关键功能。
The key function of the collection of brain genes Yankner has identified is to regulate the connections between neurons — vitally important, since it's healthy connections that keep neurons alive.
杨克纳所发现的这些大脑基因组的主要功能是调节神经元（也称神经细胞）之间的连接——这极为重要，因为神经元就是依靠这种正常的连接而存活。
The FETCH() function retrieves a key from either the primary or the secondary hash, where the primary hash is given preference.
FETCH()函数从主散列或辅散列检索键，这里优先检索主散列。
The information about the key generator function can be gathered with the db2look tool or directly from the db2 catalog views.
关于键生成器函数的信息可以通过db2look工具或直接从db 2编目视图获得。
Maintaining and even increasing your activity level is key to keeping the lung function that you have.
维持、甚至增加活动量是让你保持自身具有的肺部功能的关健因素。
This extended function supports key web service standards, allowing the flexibility to interoperate with multiple vendors' offerings. The standards supported include.
此扩展功能支持关键的Web服务标准，允许与多个供应商产品灵活交互。
Another trick when you do a lot of lookups, define a lookup key using XSL: key, then use the key function to perform the lookup.
在执行大量查找时使用的另一个技巧是使用xsl：key定义一个查找键，然后使用key函数执行查找。
Proceed to call the key-unsafe function, with the link register set, so that the called function returns to the next step below.
继续调用键不安全的函数，使用所设置的连接寄存器，以便被调用的函数返回下面的下一个步骤。
A high-ranking executive goes to an important customer, and comes back with information about a key function pushed for by that customer.
一个高级执行官去访问一个重要的客户，带回这个客户提出的关于一个关键功能的信息。
In such cases, it's usually a good idea to refactor the code out into a user-defined function, which the key-mapping can then call.
在这种情况下，通常最好将代码重构为一个用户定义的函数，键映射随后就可以调用该函数。
This processing adds overhead when an exported key-unsafe function is called, but only when the called function is external to the calling module.
当调用导出的键不安全的函数时，这个处理将增加相应的开销，但是仅当被调用的函数位于调用模块外部的时候才会出现这种情况。
A key function of the Technical Centre is tennis ball approval - any ball used in tournament play must be approved by the ITF, based on the tests conducted in this laboratory.
技术中心最关键的职责是网球的认证测试-任何锦标赛中使用的网球必须通过ITF检验认证，测试在技术中心实验室内进行。
Maintaining situational awareness is a key function of working memory.
保持对情况的了解是工作记忆的一个重要的作用。
Strip tracing is the base of automatization of rolling progress and also the key function of computer control system.
带材跟踪是实现轧制过程自动化的基础，也是轧机计算机控制系统的重要功能之一。
The article mainly introduces broadcast transmitter recloser video screen systematically, including design destination, key function, hardware configuration and software design.
介绍了广播发射机自动开关显示屏系统的设计目标、主要功能、硬件结构和软件设计。
For collisional high lying state population, injection of buffer gas will be the key function to high lying state population.
对于主要通过碰撞实现高位能级布居的过程，加入缓冲气体对高位能级布居起关键作用。
Medical laser film printer is an important part of medical image equipments, and has key function in diagnoses.
医用激光胶片打印机是现代医学影像设备的重要部分，对医学诊断起着关键作用。
Protein also works as a large message molecule, having the key function in the live bodies.
蛋白质作为一种信息大分子，在生命体中起着关键作用。
Nod factors are a novel general class of signal molecules produced by rhizobia, which play a key function in the initial steps of nodulation.
结瘤因子是由根瘤菌产生的一类信号分子，它们在结瘤的起始阶段发挥着十分重要的作用。
NO is a new kind of cell messenger and efficacy molecule, exerting key function in functional dyspepsia. It reviews the relativity developments between NO and functional dyspepsia.
一氧化氮（NO）是一种新的细胞信使分子和效应分子，在功能性消化不良疾病中起着重要作用，本文就NO与功能性消化不良的相关性研究进展作一综述。
NO is a new kind of cell messenger and efficacy molecule, exerting key function in functional dyspepsia. It reviews the relativity developments between NO and functional dyspepsia.
一氧化氮（NO）是一种新的细胞信使分子和效应分子，在功能性消化不良疾病中起着重要作用，本文就NO与功能性消化不良的相关性研究进展作一综述。
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