The emergency switches for various oil pumps and E. R. fans are arranged at the entrance to the engine room .
各种油泵和船舱风机的应急开关装在机舱的人口处。
A good algorithm to design such a hierarchical database consists of two steps, first, to describe real world in E-R model and then, convert it to the model supported by the DBMS.
在设计层次型数据库时，一个较好的设计方法是分二步走：首先利用实体联系方法抽象出现实世界的实体联系模型，然后将实体联系模型变换到具体DBMS 所支持的层次型模型。
Whether the E-R schema constructed caters for database requirement and how correctness and completeness of the conceptual schema is evaluated remains a problem needed for further research.
所构造出的E - R模式是否满足数据库的设计要求，如何评价所构造的概念模型的正确性与完整性，仍然是个需要深入研究的问题。
Used the E-R graph tool to design the system information model, and has constructed the system database physical information model.
采用实体联系图工具设计了系统的信息模型，并构建了系统的数据库物理信息模型。
Some basic concepts of E-R relation model and multi-dimension data model are introduced, and design of multi-dimension data model of demand management is described in detail.
本文介绍了E R关系模型和多维数据模型的一些基本概念，着重介绍了需求管理的多维数据模型设计。
According to the deficiency of traditional E-R model in large database designing, the paper puts forward a design idea of object-oriented database based on UML.
针对传统e - R模型在大型数据库设计中的不足，提出一种基于UML的面向对象数据库设计思想。
This text introduced the basic concept and modeling process of a semantic object model, and compared it with E-R model.
简要介绍了语义对象模型的几个基本概念，并与E -R模型作比较。
After the analysis of system function and business, this paper designs the database E-R model and logical data model of this system.
在分析了系统业务和功能之后，设计了系统数据库的E - R模型及逻辑数据库模型。
This paper makes an E-R model for the comprehensive vulnerability analysis model, and establishes IMS vulnerability knowledge base.
并对脆弱性综合分析模型进行了E-R建模，建立了脆弱性知识库。
Further more, rules of case library designing, organizing and distributed storing are investigated, in which, an E-R (Entity-relation) model of plastic parts and injection mould is constructed.
进一步提出了实例库的设计原则与组织原则，建立了塑件和模具之间的E -R模型，提出了注射模实例的分散组织存储方法。
The system is developed by object-oriented method, and modeled by UML. According to E-R model analysis, the background database is established.
系统采用面向对象的开发方法，用uml建模语言将系统需求模型化，并根据E - R模型分析结果建立后台数据库。
Main deck E. R. entrance door port-door closer missing.
主甲板机舱左舷入口门没有闭合器。
For the tank top till loose floor of E/R, all coats should be finished on block stage.
机舱内底至花钢板区域，分段阶段油漆施工结束。
The logic framework structured design is consisted of theory analysis of function dependency, relation normalization, transformation from E-R model to relation model and data model normalization.
逻辑结构设计包括函数依赖和关系规范化的理论分析、E - R模型向关系模型的转换和数据模式规范化。
The arrangement of E. R Platform decks shall be as shown in the General Arrangement plan.
机舱平台的布置应如总布置图所示。
The Ni-implanted electrodes were tested with respect to their electrocatalytic activity for the hydrogen evolution reaction (h. e. r. ) in 30% KOH solutions.
在30%KOH溶液中测试这些电极对氢析出反应的电催化性能。
The Ni-implanted electrodes were tested with respect to their electrocatalytic activity for the hydrogen evolution reaction (h. e. r. ) in 30% KOH solutions.
在30%KOH溶液中测试这些电极对氢析出反应的电催化性能。
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