The histological grades were significantly different between the convex and the concave side of the growth plate in the apex vertebrae (P<0.05).

顶椎椎体生长板凸、凹侧组织学分级差异有统计学意义（<0.05）。

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The analysis and calculation indicate that the image of a square for a wedge prism is in the shape of bell with a convex side rather than with a concave side.

分析和计算都表明，正方形物体经光楔所成的像是凸侧面的钟形而不是凹侧面的钟形。

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The histological difference was also found significant statistically between end vertebrae and apex vertebrae in the concave side of vertebral growth plates (P<0.05).

终椎凹侧生长板和顶椎凹侧生长板组织学分级有明显差异且有统计学意义（P<0.05）。

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