理学 云计算 释 infrastructure as a service 基础设施即服务 将信息技术（information technology，IT）基础设施作为一种服务，通过网络对用户提供的一种服务模型。
软件工程 释文 infrastructure as a service, IaaS 基础设施即服务
- Five Capitals of Liao Dynasty
- five centroids of triangle
- Five-Character Love Songs Accompanied by Drum, Horn and Transverse Flute
- Five Chuanqi Stories of the Bishengyiguan Edition
- five circles theorem
- Five Classics
- Five Codices of Heritage
- Five College Observatory
- five colored birds patterns
- Five-color glazed vase with auspicious bat Guangxu, Qing Dynasty
- Five Colors
- five-color theorem
- five-coloured brocade Buddhist Paradise
- five consumptions
- Five Council System
- five cubes
- five dams controlling the Huaihe River water to the Yellow Sea
- five dan seven modes
- Five Daughters Offer Birthday Felicitations
- Five Days in March
- Five Defects in Poems
- five deficiencies
- five defilements
- five deletions
- five desires