英语词汇“earthquake-pendulum-microphone”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

earthquake-pendulum-microphone

† earthquake-pendulum-microphone n. Obsolete rare an instrument for detecting seismic movements.The instrument consisted of a length of carbon suspended vertically with its lower end resting lightly on the top of another length of carbon attached to a rigid frame, and connected to a telephone receiver so that relative movement of the two lengths of carbon produced a sound in the receiver.

ΚΠ

1882 Nature 6 July 220/1 In relation to their study [of]..seismological movements of the earth's crust as revealed by the microphone..[Di A. V. G. Mocenigo] has devised an earthquake-pendulum-microphone.

extracted from earthquaken.

as lemmas

单词	earthquake-pendulum-microphone
释义	> as lemmas earthquake-pendulum-microphone † earthquake-pendulum-microphone n. Obsolete rare an instrument for detecting seismic movements.The instrument consisted of a length of carbon suspended vertically with its lower end resting lightly on the top of another length of carbon attached to a rigid frame, and connected to a telephone receiver so that relative movement of the two lengths of carbon produced a sound in the receiver. ΚΠ 1882 Nature 6 July 220/1 In relation to their study [of]..seismological movements of the earth's crust as revealed by the microphone..[Di A. V. G. Mocenigo] has devised an earthquake-pendulum-microphone. extracted from earthquaken. < as lemmas
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