作者还观察到中脊上皮细胞前后向的迁移，这种机制可能在后部腭板的融合中起到重要作用。

We also observed an anteroposterior migration of medial edge epithelial cells, which may play an important role in posterior palate fusion.

youdao

在正畸治疗中不但要增强磨牙的前后向支抗，还要重视垂直向支抗。

We must pay attention to enhancing vertical anchorage of molars besides sagittal anchorage in orthodontic treatment.

youdao

所有的前后向控制杆的操纵手柄都向前移动了2 ~ 3英寸。

Both front and rear control sticks have the grips moved forward 2 "to 3".

youdao