The U.S. Geological Survey (USGS) maintains an online database of fly ash-based uranium content for sites across the U.S..

美国地质调查局(usgs)拥有一个全美浮尘铀含量的在线数据库。

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To start, you need to get the USGS "legacy" data imported into your database.

首先，需要将USGS “遗留”数据导入到数据库。

youdao

To start, you need to get the USGS "legacy" data imported into your database.

首先，需要将USGS “遗留”数据导入到数据库。

youdao