presentation

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【词性】：n．

【释义】：

❶ 先露，产式，产位❷ 展示，呈现

breech presentation臀先露

footling presentation逆产(脚踏莲花生)，足先露

head presentation头先露

oblique presentation偏产；斜产位

polar presentation纵产位

reverse presentation倒产

single breech presentation倒臀产

transverse presentation横产；横产位

When the hand of the fetus presents during labor is transverse presentation．横产指分娩时胎儿手先下。

Reverse presentation is the case when the foot of the fetus presents during labor．倒产指分娩时胎儿足先下。

Oblique presentation is the case when the head of the fetus is oblique and the shoulder presents during labor．偏产指分娩时胎儿头偏歪而肩先露。