采用灰色聚类方法确定各影响区县的站点数量，然后对选址方案做进一步的优化。
Using gray clustering method to determine station number of districts, then on the site plan for further optimization.
我们自1994～ 1997年对成都市范围内各区县的竹木用材蛀虫危害情况进行了初步调查。
The paper reports the results of survey on different species of destructive insect against bamboo and wood in 135 spots of Chengdu region from 1994 to 1997.
以资源和环境定位为主，确定牧区县和半牧区县的保护建设型、基地建设型和生态旅游型等产业定位类型；
The classification identifies also their industrial types, such as protection and construction type, capital construction type and ecological tourism type.
应用推荐