“cross-hair eyepiece”的概念、定义、翻译、参考文献-科学参考

单词	cross-hair eyepiece
释义	cross-hair eyepiece 十字线目镜
随便看	control arm control assembly control automation system control azimuth control ball control band control behavior control bench board control bit control block control block event control board control board for cooling unit control booster control booth control box control break control break level control-budget variance control building control buoy control bus control bus comparator control button control by exception

科学参考收录了1248194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。