You can handle this with numeric types; for instance, executable is 1, directory is 2, and special is 3.

可以使用数字类型来处理它；例如，可执行文件为1，目录为2，特殊为3。

youdao

Use a password of at least 6 characters, and ensure that it contains some numeric and special characters (for example, c0113g3).

使用至少6 个字符的密码，并且确保包含一些数字和特殊字符（比如，c0113g3）。

youdao

DEM has been one of basic contents of National Special Data Infrastructure (NSDI) in various countries and integrated by Numeric Spatial Data Frame (NGDF) to produce in large scale.

DEM已成为世界各国空间数据基础设施(NSDI)的基本内容之一，被纳入数字化空间数据框架(NGDF)进行规模化生产。

youdao

DEM has been one of basic contents of National Special Data Infrastructure (NSDI) in various countries and integrated by Numeric Spatial Data Frame (NGDF) to produce in large scale.

DEM已成为世界各国空间数据基础设施(NSDI)的基本内容之一，被纳入数字化空间数据框架(NGDF)进行规模化生产。

youdao