a brownfield site的用法和样例：
- This article will focus on one Brownfield site, located in an affluent section of the State of Connecticut in the United States.
- A brownfield deployment, in contrast, is an upgrade or addition to an existing network and uses some legacy components.
- To effectively manage the Brownfield,health risk assessment was conducted for a Brownfield located in one of Cities in Henan province.
- Issues and data sources for identifying brownfield sites and other environmental risks are presented along with a simple framework for conducting an economic base analysis.