| 单词 | electric arc |
| 释义 | electric arcnounarc (def. 2). Origin of electric arcFirst recorded in 1880–85 Words nearby electric arcelectrical failure, electrical field, electrical scanning, electrical storm, electrical transcription, electric arc, electric-arc furnace, electric arc welding, electric blanket, electric blue, electric catfish Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for electric arc
Scientific definitions for electric arcelectric arc An electric current, often strong, brief, and luminous, in which electrons jump across a gap. Electric arcs across specially designed electrodes can produce very high heats and bright light, and are used for such purposes as welding and illumination in spotlights. Unwanted arcs in electrical circuits can cause fires. Lightning is a case of an electric arc between one cloud and the earth or another cloud, as are sparks caused by discharges of static electricity. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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