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

单词	seconds pendulum
释义	seconds pendulum seconds pendulum [′sek·əns ‚pen·jə·ləm] (horology) A pendulum measuring 99.353 centimeters between its center of suspension and center of oscillation, and which requires exactly 1 second to swing from one side to another at sea level and 45° latitude.
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