| 单词 | porphyry mortar |
| 释义 | > as lemmasporphyry mortar ΘΚΠ society > occupation and work > equipment > work-benches, seats, etc. > [noun] > block > for grinding on porphyryc1395 porphyry mortar1605 porphyry stone1644 porphyrite1708 1605 T. Tymme tr. J. Du Chesne Pract. Chymicall & Hermeticall Physicke ii. v. 125 Beaten into pouder in a purphorie morter of smal bignesse. 1758 R. Dossie Handmaid to Arts II. iv. i. 350 Fuse this mixture..and then..reduce it in a flint, agate, or porphyry mortar, to an impalpable powder. 1862 New Amer. Cycl. (new ed.) XIII. 381/2 The platinum..is amalgamated with double its weight of mercury in a porphyry mortar. < as lemmas |
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