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单词
orthonormal tetrad
释义
orthonormal tetrad
orthonormal tetrad
[
¦ȯr·thə¦nȯr·məl ′te‚trad
]
(relativity)
A collection of four mutually orthogonal unit vectors, three spacelike and one timelike, at a point of space-time, that specify the directions of the four axes of a locally Minkowskian coordinate system.
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更新时间:2026/4/16 6:06:55