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Geofluids
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2023
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Article
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Fig 2
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Research Article
Contact Resistance between Calcareous Sand and Electrodes Based on the Two-Electrode Method
Figure 2
Scanning test results of three kinds of calcareous sands by electron microscopy (200 times).
(a)
2-2.5 mm
(b)
1.5-2 mm
(c)
1-1.5 mm