Because the resistances between the remaining trace and non-remaining trace are different in paper, we can test remaining trace on paper by testing the resistance of invisible fingerprints of sweat.

由于纸张上有无残留痕迹处的阻抗不同，因此可以通过测试纸张有无汗潜指纹纹理处的阻抗，来实现检测纸张上残留痕迹的目的。

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This article elaborates on the testing principles and working procedures of the remaining trace on paper (mainly invisible fingerprints of sweat).

本文详细叙述了纸张上残留的痕迹（主要是汗潜指纹）的检测原理和工作过程。

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Remaining traces are indistinguishable in a body of water as enormous as the Gulf of Mexico and no different than the trace amounts that naturally seep from the ocean floor.

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