The research of the bone structure on the pedicle screws think that the bone mineral density under the cortes of the pedicle srews is higher.是什么意思_The research of the bone structure on the pedicle screws think that the bone mineral density under the cortes of the pedicle srews is higher.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句