如果可能，创建可重用对象并建立物理模型与业务模型相分离的多层模型。
Whenever possible, create reusable objects and build multi-tier models that separate physical models from business models.
构造了一个程序设计与知识库相分离的通用的数据库自然语言接口系统模型。
A universal system model about database natural language interface, which separates the programming from Knowledge-Base is constructed.
该模型充分考虑了油水两相的物性以及两相分层流动对分离过程的影响。
The effects of the physicalchemical characteristics of the liquids and the oilwater twophase stratified flow on the separating process were fully considered in this model.
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