dark field是什么意思 dark field怎么读
dark field的用法和样例
- For astrometric purposes, dark frame and flat field calibration is recommended.
出于天文测量要求，暗场图和平场图校准是被推荐的。 - The annular lens dark field vertical illumination system has been more and more applied in special microscopes.
环形透镜暗场落射照明系统越来越多被应用在特型显微镜上。 - The spirals are not readily seen unless immunofluorescent stain or dark field illumination is employed.
螺旋体不易观察除非在荧光显微镜或暗视野显微镜观察。
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