Methods: X ray magnifying power of alveolar was estimated by measuring the power of a reference.

方法：摄x线检查时，通过测量参照物的X线放大率来估计牙槽骨的X线放大率。

youdao

Methods: X ray magnifying power of alveolar was estimated by measuring the power of a reference.

方法：摄x线检查时，通过测量参照物的X线放大率来估计牙槽骨的X线放大率。

youdao