巴西土地状况和非洲一样：热带气候，土地缺乏养份。
Brazilian land is like Africa's: tropical and nutrient-poor.
这些图片将用于勘测地貌和协助城市规划，还能提供关于农作物和土地状况的有价值信息，并协助救灾工作。
These images will be used to map territory and help with city planning. The pictures can also provide valuable information about crop and land conditions, and assist in disaster relief efforts.
据介绍，水下考古工作将从水下土地状况摸查开始，进一步考查现在已没入水中的古代战场和鄱阳湖老爷庙水域沉船的情况。
Archaeologists will start by identifying submerged indigenous sites, waterlogged ancient battlefields, and shipwrecks at "Laoyemiao", a mysterious and dangerous area in Poyang Lake.
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