阶层的系统的英文

knowledge-level systems

operation-level systems

• 阶层:    stratum; rank; sec ...
• 的:    4次方是 The fourth po ...
• 系统:    system

例句与用法

1. The council is a nonprofit organization made up of building industry leaders . it has a rating system for buildings called leadership in energy and environmental design , or leed
   这个委员会是一个由工业领导人组成的非政府组织。对于建筑它有一个分机系统，叫做环境能源或leed的领导阶层的系统。