two-layer

Strength Calculation of the Two-Layer Sleeve Centrifuge Basket Installed With Tight Fit

采用过盈装配双筒离心机转鼓的强度计算

This thesis describes the common requirement of the data environment for the CRM customer data analyzing, comparing the difference between the DB-DW two-layer system and the DB-ODS-DW three-layer system, then proposes the framework of the analyzing CRM data environment.

随后，本文阐明了CRM数据分析环境的一般需求，对比了目前普遍应用的DB-DW两层体系和DB-ODS-DW三层体系之间的区别，并提出了分析型CRM数据环境框架。

The comparison of technologies between two-layer model and three-layer model was described in this paper. A three-layer distributed system analysis and design method based on middleware were presented for the large paper mill.

在对两层与三层开发模式进行比较分析的基础上，针对大型造纸企业业务逻辑复杂、管理分散的特点，给出了基于中间件的三层分布式系统分析与设计方法。