concave是什么意思_concave怎么读_音标'kɒn'keɪv

concave是什么意思

音标:英 ['kɒn'keɪv]美 [kɑnˈkev, ˈkɑnˌkev]

a. 凹的[医] 凹的, 凹面的

a. curving inward

concave的用法和例句：

1. They need to be concave to make implosion work.

要把它们汇聚起来才能实现内爆

2. what, with your concave chest and your paper towel tube arms.

毕竟看看你的小胸膛 和纸板似的小胳膊

3. The concave fracturing juxtaposed with the outward bowing caused by the explosion.

由于爆炸造成的外部弯曲 使得两边并列折成了凹形

4. It's a quadrilateral, but there's nothing particularly symbolic about a 4sided concave polygon.

这是个四边形 但四边凹形多边形 没什么特别的寓意

5. Its weight and oothness, along with the slight concavity of the mirror, means it can spin for a long time.

它的重量与平滑度 再加上底下镜面盘的些微凹度 都意味着它可以转很久

6. Given the narrow subpubic concavity and the irregularlylipped ventral margin at the pubic symphysis, the victim was male in his 40s.

根据狭窄的耻骨下凹面 和耻骨联合处不规则的腹缘 可以断定死者为四十多岁的男性

7. Reflectors made of metallic sodium would be attached to the satellite to create a concave mirror the size of ten football fields.

用金属钠制造的反光板 安装在卫星上 制造一个有十个足球场大小的凹透镜