| 单词 | drum ring |
| 释义 | > as lemmasdrum ring drum ring n. (a) Anatomy and Zoology the bony ring to which the tympanic membrane is attached; cf. tympanic ring at tympanic adj. 1a; (b) a circular ring around something drum-shaped. ΚΠ a1836 Encycl. Metrop. (1845) VII. 355*/2 There is not any bony external auditory passage; and the drum-ring, facing outwards and downwards, is large. 1839 Railway Times 4 May 362/1 Drum rings; cone pullies; lamp posts of all sizes and designs. 1984 Otorinolaringologia 34 529/2 Ponticulus lateralis.—The trabecula that connects the eminentia pyramidalis with the drum ring. 2010 U.S. Patent 2010/0279839 1/1 In its drum ring, the drum magazine includes tool chambers which extend parallel to the main axis. < as lemmas |
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