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单词 cardioid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
car•di•oid  (kärdē oid′),USA pronunciation n. [Math.]
  1. Mathematicsa somewhat heart-shaped curve, being the path of a point on a circle that rolls externally, without slipping, on another equal circle. Equation:r = a(1-cosA).
  • Greek kardioeidé̄s heart-shaped. See cardi-, -oid
  • 1745–55

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更新时间:2025/2/23 1:09:49