PHI has various meanings in the Electrical category. Discover the full forms, definitions, and usage contexts of PHI in Electrical.
the percentage of open spaces between pieces of gravel cobble etc. Unsoundness caused in cast metals by the presence of blowholes and shrinkage cavities. The ratio of the size of a material's pores to the volume of the material's mass. The degree to which a material will absorb liquids. Of a rock or sedimentary deposit, the percentage of volume that consists of voids and open space. The percentage of open space between soil particles and rocks.
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