sard

听听怎么读
英 [sɑ:d]
美 [sɑd]
是什么意思
  • n.

    红玉髓;

  • 英英释义

    sard[ sɑ:d ]

    • n.a deep orange-red variety of chalcedony

      同义词:sardinesardius

    学习怎么用

    双语例句

    用作名词(n.)
    1. A closely related variety of chalcedony, sard, differs only in the shade of red.
      与之关系密切的品种,肉红玉髓,不同点只在于红色色调上。

    权威例句

    Smale, S.: An infinite dimensional version of Sard's theorem. Amer. J. Math. 87, 861-866
    AN INFINITE DIMENSIONAL VERSION OF SARD'S THEOREM
    Stratifications de Whitney et théorème de Bertini-Sard
    Stratifications de Whitney et theoreme de Bertini-Sard
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