英语语法分析

Is I does not want to open the ostium, aloofs.

是我不想打开心门，拒人于千里之外。

A certainty basic foundation for precision determine the cannon ostium velocity are offered.

从而为精确测定炮口速度提供了一定的理论基础。

Programmed stimulation was delivered at coronary sinus ostium, distal coronary sinus and lateral wall of left atrium.

分别通过冠状窦口电极、冠状窦远端电极和左房侧壁电极进行程控刺激。