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单词 hodograph
释义

WordReference Random House Unabridged Dictionary of American English © 2024
hod•o•graph  (hodə graf′, -gräf′),USA pronunciation n. [Math., Mech.]
  1. Mathematics, Mechanicsthe figure described by the extremity of a vector that has a fixed origin and a position vector equal to the velocity of a moving particle.
  • Greek hod(ós) way + -o- + -graph
  • 1840–50

Collins Concise English Dictionary © HarperCollins Publishers::
hodograph /ˈhɒdəˌɡrɑːf -ɡræf/ n
  1. a curve of which the radius vector represents the velocity of a moving particle
Etymology: 19th Century: from Greek hodos way + -graph
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