| 单词 | tonophant | 
| 释义 | > as lemmastonophant   tonophant  n.  Brit.  , U.S.  , ΘΚΠ the world > matter > physics > science of sound > vibration > instrument for analysing vibration > 			[noun]		 > with visible output phonautograph1859 phonoscope1868 time marker1869 phonograph1875 phoneidoscope1878 harmonograph1879 tonophant1895 vibrograph1904 1895    I. K. Funk et al.  Standard Dict. Eng. Lang. II.  				Tonophant, a device in which two thin pieces of steel welded together are used to exhibit acoustic vibrations to the eye. < as lemmas  | 
	
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