Only a round thin cell layer was observed under the microscope.

显微镜下只能观察到呈圆形的浅层细胞。

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Results Observed under inverted phase contrast microscope, compared with the control group, cells in Egb group shrinked, turned smaller round and budded around the cell member.

结果 在相差显微镜下，出现细胞收缩、体积变小、变圆、胞膜出现气泡等凋亡现象。

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Results It was seen under the microscope that the cells grew well with round or fusiform appearance and clear outline, and the cellular plasma plenty and bright.

结果镜下见细胞生长情况良好，呈圆形或梭形，界限清楚，胞浆丰富透亮。

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Under a microscope, the scientists discovered the holes were too perfectly round to have been caused by bacteria.

BBC: Prehistoric dentistry evidence found