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单词 Schuler pendulum
释义 Schuler pendulum
[`shü·lǝr ´pen·jǝ·lǝm]
MECHANICS
Any apparatus which swings, because of gravity, with a natural period of 84.4 minutes, that is, with the same period as a hypothetical simple pendulum whose length is the earth's radius; the pendulum arm remains vertical despite any motion of its pivot, and the apparatus is therefore useful in navigation.
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