| 单词 | 凸出部分 |
| 释义 | 〔cornea〕The transparent, convex, anterior portion of the outer fibrous coat of the eyeball that covers the iris and the pupil and is continuous with the sclera.角膜：眼球似纤维的外膜的前部透明凸出部分，它覆盖虹膜和瞳孔并与巩膜连接〔bulge〕A protruding part; an outward curve or swelling.膨胀，肿胀：凸出部分；向外弯曲或膨胀〔tumbler〕A projecting piece on a revolving or rocking part in a mechanism that transmits motion to the part it engages.转臂：机械装置中转动或摇动部分上的凸出部分，用来把另一机体移到啮合部位 |
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