What is the best method of soil sampling for research work?

我们的研究中，最佳的采样方法是什么？

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For lunar exploration missions such as soil sampling, payload instrumentation must safely descend to the lunar surface.

为了完成对月球土壤的取样等科学任务，必须确保某些有效载荷安全降落在月球表面。

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Inherent limitation involved in the traditional soil sampling techniques makes it imperative to explore alternative new techniques.

传统的土壤采样技术存在着诸多的不足，使得新技术的探索势在必行。

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It also carries the risk of producing an inaccurate picture of the overall distribution of moisture, as the spots chosen for sampling may be considerably damper or drier than the soil just a few metres away.

ECONOMIST: Winemaking and radar