The cantilever taps across the surface with metronomic precision.But as it moves, it also behaves much like a tuning fork, producing overtones related to the fundamental vibration.
悬臂以精奏轻触过物体表面,而悬臂动时,就像是一个音叉,会产本振动有关谐音。
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Sammy produced a private tuning-fork, black and grimy, which, being about seventy years of age, and wrought before pianoforte builders had sent up the pitch to make their instruments brilliant, was nearly a note flatter than the parson's.
萨米制作了一把私人音叉,又黑又脏,大约有七十岁的历史,而且在钢琴制造商派上舞台使他们的乐器变得辉煌之前就已经被锻造了,几乎比牧师的音符更平。