The geological map spatial database is large and complicated. To ensure the quality of database, it is essential to check the data systematically during the database construction.

地质图空间数据库数据量大，内容复杂，为了保证数据库的质量，在地质图空间数据库的建立过程中，对数据的全面系统检查工作是非常必要的。

youdao

Few public agencies, including 911 dispatch centers, maintain a database of AED locations or systematically check to make sure available devices are in working order.

WSJ: This Device Saves Lives, But Can Be Hard to Find