Studying cold trap deposits has direct applicability to learning more about the planet Mercury, and lunar regolith contains information about the history of our Sun.
The nitrogen itself also has a direct cleaning effect, breaking down carbon deposits that can harden on an engine's moving parts.
氮本身就有直接的清洁效果，它可以分解积碳，而发动机里的这些积碳使移动零件固化而难以移动。
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Deep penetration exploration geochemistry, a new branch of exploration geochemistry, involves the measurement of any direct geochemical information emanating from the deeply concealed deposits.