1) Dummy Section
虚设区段NA
2) virtual channel segment
虚设河段法
1.
The formula of internal boundary conditions,such as drainage outflow,barrage,slice gate and drainage pump station,with double-recursion algorithm are deduced by using the concept of virtual channel segment.
基于邻接矩阵和邻接表概念,提出了新的拓扑结构,即利用net、edge和node对象实现河网拓扑信息及河道断面和结点信息的储存;基于虚设河段法,推导出城市河网内边界即集中入流(雨水管出口)、闸堰的追赶系数,从而实现了基于GIS平台的城市河网非恒定流一维数值模拟程序的通用性和可移植性。
3) Dummy Control Section(DSECT)
虚设控制段
4) design of depot station
区段站设计
1.
The article analyzes the status quo and the existing problems of the depot stations in the whole railway system and describes the influence of the development of traction power on layout and design of depot stations.
分析了全路区段站的现状和存在问题;阐述了牵引动力的发展对区段站布点与设计的影响;根据当前牵引动力变革的形势,对机务布点、长交路距离、区段站设计,以及新线与既有线接轨点的设计方案等问题作了探讨并提出了建议。
5) sodium
[英]['səʊdiəm] [美]['sodɪəm]
Na
1.
Reducing formation of gaseous species,which contain chlorine,potassium and sodium,can effectively abate deposit formation,slagging,corrosion and harmful pollutant emission during thermal conversion of biomass fuels.
减少生物质在热转化反应器中Cl与碱金属K和Na以气态组元逸出可有效遏制积灰、腐蚀等现象和减少污染气体排放。
6) the Building of the Educational Virtual Community
教育虚拟社区建设
补充资料：虚设
1.空安置。 2.谓虚撰﹐空谈。 3.空许。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条