| 单词 | extension tube |
| 释义 | extension tubenoun Photography.any of a series of tubes of varying lengths placed between the lens and a camera body to facilitate closeup focusing. Origin of extension tubeFirst recorded in 1955–60 Words nearby extension tubeextension field, extension ladder, extension library service, extension ring, extension rule, extension tube, extensity, extensive, extensometer, extensor, extensor digitorum brevis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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