| 单词 | tympan |
| 释义 | tympan /tim"peuhn/, n. 1. Print. a padlike device interposed between the platen or its equivalent and the sheet to be printed, in order to soften and equalize the pressure. 2. tympanum (defs. 2, 4). [bef. 900; ME: drum, OE < L tympanum TYMPANUM] |
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