So the researchers took soil samples at beaches around the lake.

因此，研究人员在湖周围的海滩上采集了土壤样本。

And within each plot we will take soil moisture measurements.

在每个地块中，我们将进行土壤水分测量。

They're alleged to have taken soil samples from restricted areas in Iran's central desert where the guards have been conducting aerospace missile exercises.

据称，他们在伊朗中部沙漠的禁区内采集了土壤样本，该地一直是警卫进行航空导弹演习的地点。

Crews are taking soil samples, flying drones and helicopters with transmitters to measure the electromagnetic field of the subsurface and map the layers of rock below.

工作人员正在采集土壤样本，操纵带有信号发射器的无人机或驾驶直升机来检测地下电磁场，并绘制岩层图。