| 单词 | 链齿 |
| 释义 | 〔feedhole〕One of a noninformational series of holes in a paper tape that engages a driving sprocket to carry the tape through a reading or punching device.导孔，馈送孔：纸带上无信息的一连串孔之一，啮合滚动链齿以便从阅读装置或打孔装置上带动纸带〔sprocket〕Any of various toothlike projections arranged on a wheel rim to engage the links of a chain.链齿：在轮缘上的牙状凸出物，用以链条得以连续运动 |
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