本文的研究背景为大连港务集团的实际项目，水路运输整体平台框架的开发。

The research background of this paper is the real project of waterage platform framework in Dalian harbor group.

youdao

本文的研究背景为大连港务集团的实际项目，水路运输整体平台框架的开发。

The research background of this paper is the real project of waterage platform framework in Dalian harbor group.

youdao