- 1. In order to protect the Anseriformes in Lanzhou, suggestions for the improvement of the urban environmental structures are given here.
- 为保护好兰州市区越冬雁鸭类，本文对改善城市环境结构提出了几点建议。
来自互联网
- 2. In order to protect the Anseriformes in Lanzhou, suggestions for the improvement of the urban environmental structures are given here.
- 为保护好兰州市区越冬雁鸭类，本文对改善城市环境结构提出了几点建议。
来自互联网
