The article introduced the structure, functions and use of the automatic mapping system between CLC4 and DDC21.

本文还介绍了CLC与DDC自动映射系统的结构、功能和使用。

youdao

The article introduced the structure, functions and use of the automatic mapping system between CLC4 and DDC21.

本文还介绍了CLC与DDC自动映射系统的结构、功能和使用。

youdao