The federation server forward for each request that it receives sub-operations to source systems.
联合服务器会将其接收到的每个请求的子操作转发到源系统。
This impacts the resource utilization at the source systems negatively in that they need to respond to the sub-operations from the federation server.
这将对源系统的资源使用率造成负面影响，因为需要对来自联合服务器的子操作做出响应。
Some implementations of the data federation pattern are capable of sending some or all of the sub-operations (sub-queries) in parallel to the integrated source systems.
数据联合模式的有些实现可以将部分或全部子操作(子查询)以并行方式发送到集成源系统。
In multidatabase, access to global view will be decomposed to several sub-operations to several LDB, and perhaps also need data schema translation and query processing.
在多库系统中，对全局视图的存取操作要分解为针对多个LDB的子操作，可能还要对数据模式及查询语言进行转换。
Complexity of the federated query: how many sub-operations such as filtering, joining, sorting, and so on, does the federation server need to execute to perform the query.
联合查询的复杂性：为了执行查询，联合服务器需要执行多少筛选、联接、排序之类的子操作。
This allows the data federation server to receive queries against the integrated view and to calculate the optimum number and types of sub operations to perform.
这就允许数据联合服务器接收对集成视图的查询和计算要执行的最优子操作数量和类型。
The more complex those sub operations are and the more frequently they are sent to the sources, the more additional workload the source servers need to manage.
这些子操作越复杂，其发送到源系统的频率越高，源服务器需要管理的额外工作负载也就越多。
According to the mapping definition, the federation server breaks down the federated query into multiple sub operations. Multiple factors influence this step.
根据映射定义，联合服务器将联合查询拆分为多个子操作。
According to the overall query execution plan, the sub operations are then applied at the sources.
根据总体查询执行计划，将随后对数据源执行各个子操作。
Whereas the FETCH can be used to return 1 or more rows allowing a single RPG sub-procedure to be used for CHAIN, READ or READE operations.
但是FETCH能用于返回一行或多行，允许单个RPG 子过程用于CHAIN、READ 或READE 操作。
Installing a WPAR Manager sub-agent that extends the base Director agent software on the managed AIX systems to support WPAR operations.
在管理的AIX系统上安装WPARmanager子代理，它扩展基本的Director代理软件，支持WPAR操作。
In addition to evaluation, site operations for the works also will be set during finals for sub-contest areas and nationwide final, as one of examination items.
比赛除作品评审外，还将在分赛区决赛及全国总决赛阶段设置现场操作环节，作为考核项目之一。
Traditionally they have worked in the mainly empirical sub-macro realm of unit operations, with some analysis of microscopic phenomena and macroscopic plant design.
化学工程师们传统的工作领域是以经验为主的半宏观的单元操作，结合一些微观现象的分析和宏观的工厂设计。
To review site sub-contractor's standards and operations for compliance with the contract and company requirements for quality.
评估工地分包商的工作标准及运作是否符合合同及公司对质量的要求。
With vessel operations remaining the core business, Maersk Supply service will in addition bundle services and manage sub-contractors to offer a more simplified and efficient operation to customers.
船作业仍是公司核心产业，马士基海洋服务公司还将有其它捆绑业务并管理次承包商为客户提供更加简化、高效的服务。
If there are any specialist operations or services carried out by a sub-contractor, please describe.
若存在由分包方进行的特殊运作或服务，请详述。
The Sport Command centre (SCC) operates within the Main Operations centre (MOC) of an OCOG as a sub-centre of the MOC.
竞赛指挥中心是奥组委主运行中心体系中的一个分中心。
Based on the concept of relation and sub-relation, this paper investigates the inherent meaning of traditional set operations for the nested relational data model.
本文提出的一个嵌套关系模型支持文本存储和文本检索操作，其中特征文件索引为文本检索提供了技术支持。
Based on the concept of relation and sub-relation, this paper investigates the inherent meaning of traditional set operations for the nested relational data model.
本文提出的一个嵌套关系模型支持文本存储和文本检索操作，其中特征文件索引为文本检索提供了技术支持。
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