英语词汇“royal pendulum”的意思、释义、用法解释及翻译-春雷网

词汇	royal pendulum
释义	Definition of royal pendulum in English: royal pendulum noun historical A pendulum having a period of one second, given by a length of 39.14 in (99.42 cm). Origin Late 17th century. Definition of royal pendulum in US English: royal pendulum noun historical A pendulum having a period of one second, given by a length of 39.14 in (99.42 cm). Origin Late 17th century.
随便看	at swords' points AT&T at & t atta attaboy attacca attach attachable attachable attachableness attache attache case attached attached attached to attached to attacher attaches attach great importance to attach importance to attaching attach labels to attachment attachment disorder attachment figure

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Definition of royal pendulum in English: