dark-ground是什么意思 dark-ground怎么读
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英 ['dɑːkɡr'aʊnd]
英 ['dɑːkɡr'aʊnd]
美 ['dɑːkɡr'aʊnd]
美 ['dɑːkɡr'aʊnd]
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暗视野
dark-ground的用法和样例
- 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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