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convex

英 [ˈkɒnveks]

美 [ˈkɑːnveks]

adj.  凸出的; 凸面的

TOEFLGRETEM4TEM8

BNC.16763 / COCA.23277

牛津词典

    adj.

    • 凸出的;凸面的
      curving out
      1. a convex lens/mirror
        凸透镜;凸镜

    柯林斯词典

    • ADJ-GRADED 凸起的;凸面的
      Convexis used to describe something that curves outwards in the middle.
      1. ...the large convex mirror above the fireplace.
        壁炉上方的大凸面镜

    英英释义

    adj

    • curving or bulging outward
        Synonym:bulging

      双语例句

      • A plane with a flexible face that can plane concave or convex surfaces.
        有可以刨凹面或凸面的曲面的刨子。
      • Have analyzed and calculated the diffractive efficiency of the convex grating used in the hyper spectral imager.
        对超光谱成像仪使用的凸面光栅衍射效率进行了分析计算。
      • A new large-update interior-point algorithm for convex quadratic optimization based on the class of finite kernel functions is presented.
        本文给出了凸二次优化问题基于一类有限核函数的新的大步校正内点算法。
      • Finally, optimality necessary and sufficient conditions for nonlinear convex semidefinite programming are proved.
        并给出了非线性半定规划的最优性必要和充分条件。
      • For some special cases, the deterministic convex optimization problems are derived.
        对某些特殊的情形,我们导出了鲁棒线性最优化的确定性等价问题。
      • The problem of robust stability analysis for convex polytopic uncertain discrete-time systems with multiple-state delays is investigated.
        研究了具有多重状态时滞的凸多面体不确定离散系统的鲁棒稳定性分析问题。
      • Convex sets and functions have many interesting and useful properties which are not explored in detail here.
        凸集和凸函数具有很多重要的和有用的性质,在此不作详细讨论。
      • It is useful in many branches of mathematics analysis through the research of concave and convex functions.
        对函数凹凸性的研究,在数学分析的多个分支都有用处。
      • Some known results on monotonicity of the arithmetic means of convex and concave functions are improved.
        改进了有关凹函数和凸函数的算术平均值单调性的某些已知结论。
      • Lastly, it presents a necessary condition for local uniform convex point.
        最后给出了局部一致凸点的一个必要条件。