下颌骨正中点 median mandibular point
脊髓后正中点状切开术 punctate midline myelotomy
多中心-校正内点法 multiple centrality-correction interior point method
或以两眉头中间向上一横指起，直到后发际正中点。
With two eyebrows upward or among the means, the point until after the hairline.
目的研究脊髓后正中点状切开术治疗顽固性癌性内脏痛的临床应用。
Objective: To study the effectiveness of punctate midline myelotomy (PMM)for the treatment of intractable visceral cancer pain.
戏台上第三幕的布景是皇宫，皇宫中点燃着许多蜡烛，悬挂着一张张描绘那些留着髯须的骑士的图画。沙皇和皇后大概站在正中间。
In the third act the scene was a palace in which a great many candles were burning, and pictures were hanging on the walls, representing knights with beards.
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