【摘要】介绍了如何建立CFD模拟中城市数字模型。

This paper introduces how to set up CFD digital model of city.

youdao

摘要：访问控制问题是数字版权管理中的一个重要安全问题。

Absrtact: Access control has become a difficult and important question of the digital rights management.

youdao

摘要：访问控制问题是数字版权管理中的一个重要安全问题。

Absrtact: Access control has become a difficult and important question of the digital rights management.

youdao