单词 | semi-cycloid |
释义 | > as lemmassemi-cycloid semi-cycloid n. Brit. , U.S. , ΚΠ 1695 J. Wallis in Philos. Trans. (Royal Soc.) 19 111 The Semicycloid Figure. 1796 C. Hutton Math. & Philos. Dict. at Cycloid Two equal semicycloids OP, OQ. < as lemmas |
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