平场物镜平视野物镜flat: adj. (flatter; flattest) 1.平 ...field: n. 1.原野,旷野;(海、空、冰雪等的)茫茫一片。 2 ...objective: adj. 1.【哲学】客观的;真实的;实在的 (opp. ...flat-field objective: 平场物镜flat-field objective lens: 平视野物镜下载手机词典可随时随地查词查翻译