| 单词 | carbon brush | 
| 释义 | > as lemmascarbon brush   carbon brush  n. ΚΠ 1879    U.S. Patent 220,248 1/1  				The invention consists in the arrangement of carbon..in rods or threads..and secured in bundles..to form a carbon brush to take the place of carbon plates, points, or candles, now used. 1891    Manufacturer & Builder Oct. 219/2  				The motor..is fitted with their new self-oiling bearings and carbon brushes. 1947    R. Lee Electronic Transformers & Circuits viii. 214  				The moving tap is a carbon brush which slides over exposed turns of a winding. 1992    Pract. Householder Nov. 10/3  				The carbon brushes will also need renewing every so often especially if you see excessive sparking. < as lemmas | 
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