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
- X-ray transform
- X-ray transient
- X-ray transmission imaging inspection device for scanning luggage and package
- X-ray transparent functional composites
- X-ray treatment devices
- X ray tube
- X-ray waveguide
- X-ray zone plate
- XRB
- XRD
- XRF
- XRF calcium and ferrum analyzers
- x Rs control chart
- x-Rs control chart
- XSD
- X shape state
- X-shape state
- XSL
- XSS
- X-tal
- X-test
- X' Theory
- X-tilt
- X-tube
- X-type