concave
凹
常用释义
英音[ kɒnˈkeɪv ]
美音[ kɑːnˈkeɪv ]
变形
第三人称单数:
concaves
现在分词:
concaving
过去式:
concaved
过去分词:
concaved
比较级:
more concave
最高级:
most concave
基本释义
- adj. 凹的，凹面的
- n. 凹面
- v. 使变凹形
例句
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1·He has a concave stomach.他的胃是凹的。来源: 《柯林斯英汉双解大词典》
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2·He had a concave chest.他曾有一个凹陷的箱子。
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3·The palm of one's hand is slightly concave.人的手掌是微凹的。来源: 《新英汉大辞典》
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4·Since this is a concave function, it's not just the expected value.由于这是一个凹函数，它不仅仅是期望值。
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5·Because there is no abrasion between the concave and convex, the nut is reusable.由于凹面与凸面之间没有磨损，螺母可以重复使用。
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6·By extracting water from the detector's chamber, the detector's surface becomes a concave hemisphere.通过从探测器的舱室中提取水分，探测器表面形成一个凹半球。
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7·When water is pumped out of a chamber below the plate creating negative pressure, the stretchable sensors are pulled down, producing a concave shape.当水从板下的一个腔中被抽出来产生负压时，可伸缩的传感器被向下拉，形成一个凹形。
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8·Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.水从叶子内部的细胞涌向外面的细胞，导致叶子迅速地从凸向凹翻转，就像一片柔软的隐形眼镜。
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9·The curved upper surface of a nonturbulent liquid in a container that is concave if the liquid wets the container walls.弯月面容器中之静止液体的弯曲上表面，如果液体浸润了容器壁，那么弯曲面呈凹状。
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10·We conclude that it is quasi - concave.我们判定它是拟凹的。
网络释义
- concave mirror : n. 凹透镜
- concave surface : 凹面，内弧面
- concave grating : 凹面光栅
- concave lens : 凹透镜；近视镜片
- concave bank : 凹河岸；冲刷河岸
同根词
词根：
concave
concavity
n
凹面；凹度