| 单词 | acorn tube |
| 释义 | acorn tubenoun Electronics.a vacuum tube, resembling an acorn in size and shape, used chiefly in ultrahigh-frequency electronic devices. Origin of acorn tubeFirst recorded in 1930–35 Words nearby acorn tubeacorn barnacle, acorn chair, acorn clock, acorn spoon, acorn squash, acorn tube, acorn valve, acorn worm, A Coruña, Acosta's disease, acotyledon Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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