| 词汇 | concave |
| 释义 | concaveUK:*/ˈkɒnkeɪv/, /kɒnˈkeɪv/US:/kɑnˈkeɪv, ˈkɑnkeɪv/US:(adj., v. kon kāv′, kon′kāv; n. kon′kāv) 主要翻译 concave adj (curved inwards)凹的The lens was concave and about 2 mm thick. 复合形式： concave mirror n (curves inward)凹透镜Most large astronomical telescopes use a concave mirror to bring the light to a focus. |
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