| 单词 | pulp stone |
| 释义 | > as lemmaspulp stone pulp stone n. (a) Dentistry a calcified concretion within the pulp of a tooth; (b) a stone used like a grindstone for reducing wood to pulp. ΘΚΠ society > occupation and work > equipment > paper-making equipment > [noun] > for pulping beater1825 beating-engine1825 rag engine1825 stuff engine1839 poacher1866 poaching engine1870 breaking-enginea1877 Hollander1878 breaker1880 kollergang1890 pulp stone1892 1892 Philos. Trans. 1891 (Royal Soc.) B. 182 545 Pulp-stone or secondary deposit from pulp of same tusk, showing the incorporation of connective tissue of the pulp with this tissue. 1901 J. H. Pratt in Mineral Resources of U.S. 789 Pulpstones differ from grindstones in having a much broader face. 1957 Encycl. Brit. XVII. 232/2 Natural pulpstones are 27 to 36 in. wide by 54 in. or more in diameter... Standard lengths of wood ground are 24, 32, 48 and 50 in. 1991 Jrnl. Oral Pathol. & Med. 20 496 Dentin fragments displaced into the pulp tissue during cavity preparation, acted as sites for pulp stone formation. < as lemmas |
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