| 单词 | prismoid |
| 例句 | The average value of a number of samples is the total metal contents of their respective prismoids, divided by the total tonnage of these prismoids. Principles of Mining Valuation, Organization and Administration In this neighborhood, he saw on the rocky banks of the river several prismoids of basaltes, rising to the height of fifty or sixty feet. The Adventures of Captain Bonneville, U. S. A., in the Rocky Mountains and the Far West The length of the prismoid base L for any given sample will be a distance equal to one-half the sum of the distances to the two adjacent samples. Principles of Mining Valuation, Organization and Administration The volume of ore appertaining to any given sample can be considered as a prismoid, the dimensions of which may be stated as follows:— W = Width in feet of ore sampled. Principles of Mining Valuation, Organization and Administration |
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