双层式 meaning in English

two-layer equation

Double bank cage
双层式罐笼
Double deck cage
双层式罐笼
The portfolio structure is two - tiered and includes both a core and an opportunities section
投资组合的结构是双层式的，不仅包含一个核心，还包含一个机遇部分。
Hong kong moved from the single - deck tram to the double - deck tram with an open top in 1912 , as is depicted in the $ 2 . 40 stamp
二元四角邮票上的第二代电车，采用双层式设计，上层开篷。三元邮票上的第三代电车于一九一三年开始在街道上行走。
In this paper , we mainly discussed the two - tier client / server database management system in four phases : construction of database server , design of database application software on client , connection between application software and database server and maintenance of database management system
本文主要从四个方面详细沦述了双层式客户分务器结构数据库系统的应用和研究：数据库服务器的创建、客户端数据库应用程序的设计、应用程序与后端数据库的连接以及数据库的性能及维护。