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字词 骨龄
释义 骨龄gǔlíng骨骼年龄。用X射线透视手腕部,根据骨骼的钙化程度,可以推测少年儿童的年龄和发育情况。{bone age; calcification of the wrist bone observed by X-ray, from which a child's age and growth condition can be inferred}
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