| 单词 | tracing-instrument |
| 释义 | > as lemmastracing-instrument tracing-instrument n. an instrument for copying any outline or plan on the same or a larger or smaller scale. ΘΚΠ society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for enlarging or reducing parallelogramc1656 pantograph1723 pantographer1750 reducing compass1778 tracer1812 eidograph1828 reducing machine1848 reduction compass1853 planigraph1877 tracing-instrument1877 1877 E. H. Knight Pract. Dict. Mech. Tracing-instrument, an instrument for copying figures on an enlarged or reduced scale. < as lemmas |
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