“symmetrical achromat lens”的概念、定义、翻译、参考文献-科学参考

单词	symmetrical achromat lens
释义	symmetrical achromat lens [sǝ`me·trǝ·kǝl `ak·rǝ´mat `lenz] ^OPTICS An older type of camera lens in which two positive achromatic meniscus lenses are symmetrically arranged about the stop.
随便看	safrole sag sag-and-swell topography Sagartiidae sag bolt SAGE sage sagebrush sagenite sagenitic Sagenocrinida sage oil saggar clay sagger clay sagging Saghathiinae Sagitta sagitta sagittal sagittal coma sagittal focus sagittal plane sagittal surface Sagittariidae Sagittarius

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。