The flotation samples from the excavations allowed botanists to study shifts in plant-collecting habits as if they were looking through a telescope at a changing landscape.
从挖掘物中获取的浮选样本让植物学家能够研究植物采集习性的转变，就好像是用望远镜观察不断变化的景致。
2
Another crew is focused on collectingplant matter found in a layer of peat, and they are making extraordinary discoveries.
另一名队员的任务是收集泥炭层中发现的植物物质，他们进行的是一项不寻常的发现工作。
3
When collecting germplasm, local plant quarantine procedures, for example pest risk assessment, should guide ultimate action.