con·cav·ity [kɒnˈkævəti, 美 kɑ:nˈkævət̬i] 名词 no pl 科
- concavity
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单语范例（未经PONS编辑处理）
The problem with the above approach is that it relies on the differentiability of the objective function and on concavity.
en.wikipedia.org The plantar arch flattens, the solar concavity decreases in depth and heels spread.
en.wikipedia.org It follows from concavity that the subjective value attached to a gain of $800 is more than 80% of the value of a gain of $1,000.
en.wikipedia.org A few have so little that the concavity is lost.
en.wikipedia.org For this case the concavities of the "x" and "y" cross sections are either both up if positive, or both down if negative.
en.wikipedia.org 互联网提供的例句（未经PONS编辑处理）
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www.meteorite-recon.com Their depth increases towards the centre of the concavity, which is located ~ 8 cm off the geometrical centre and on the expanded end of the shield.
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Ihre Tiefe nimmt im Zentrum der Konkavität zu, welche sich rund 8 cm von der geometrischen Mitte der Fläche auf dem breiteren Teil des Schildes befindet.
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www.meteorite-recon.com Opposite the concavity from the regmaglypted side the convex surface shows a narrow apex which also constitutes the centre of gravity of the mass.
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Genau auf der gegenüberliegenden Seite der Konkavität verfügt die konvexe Seite über einen flachen Apex, der gleichzeitig den Masseschwerpunkt des Meteoriten bildet.