| 单词 | plano-concave |
| 释义 | plano-concave in British English (ˌpleɪnəʊˈkɒnkeɪv) adjective (of a lens) having one side concave and the other side plane plano-concave in American English (ˌpleɪnoʊkɑnˈkeɪv; ˌpleɪnoʊˈkɑnˌkeɪv) adjective having one side plane and the other concave |
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