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.
目前开设的道路基金将有2680亿乌干达先令资金用于区县道路建设。
The Road fund, now inaugurated, will have NUSh268bn of funding for access by districts.
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