tympan / ˈtɪm pən /
📖毕业后词汇鼓膜鼓楼鼓风机鼓包
tympan 的定义
n. 名词 noun- Printing. a padlike device interposed between the platen or its equivalent and the sheet to be printed, in order to soften and equalize the pressure.
- tympanum.
更多tympan例句
- Make several impressions, including one on the top tympan-sheet.
- The bed traveled on guide ways, and the tympan and frisket were hinged to fold back and lay in elevated position.
- In the cut at the head of this article, the pressman is represented as in the act of turning down the frisket upon the tympan.
- Nothing remained now but to adjust the guides which would hold the cards on the tympan.
- These sheets are held in place by means of the iron clamps which slip over the ends of the tympan (see Fig. 160).