奥运场馆群：cluster
场馆群指在某一地域范围内的临近的若干个场馆和/或设施，不必要有固定的边界。这些场馆/设施的运行互相影响，且在一定程度上构成一个整体。Cluster
A number (more than one) of venues and or facilities in close geographical proximity, which do not require a secure perimeter. The operations of the venues / facilities impact on each other and are therefore integrated to the extent necessary.