单词 | sympalmograph |
释义 | > as lemmassympalmograph sympalmograph n. Brit. , U.S. [Greek παλμός vibration: see -graph comb. form] an apparatus for exhibiting the combination of vibrations, consisting of a double pendulum the two parts of which can be caused to vibrate in different directions and at varying rates, with a style attached so as to trace the resulting curves on a prepared surface.Π 1895 C. E. Benham in Engineering 26 July 127 (title) The Sympalmograph. < as lemmas |
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