dark-ground

英 ['dɑːkɡr'aʊnd] 美 ['dɑːkɡr'aʊnd]

• 暗视野

dark-ground的用法和样例：

例句

1. 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。

词汇搭配

• dark and bloody ground 美国肯塔基州的别称...