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单词 hydraulic equivalent
释义
hydraulic equivalent

Geology and Earth Sciences
  • Grains of different density will settle through a fluid at different rates. The concept of hydraulic equivalence is used to relate the size of a mineral grain to the size of a quartz grain with the same settling velocity. Thus a magnetite grain (sp. gr. 5.18) of 0.2 mm diameter is the hydraulic equivalent grain size to a 0.5 mm diameter quartz particle (sp. gr. 2.65).


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