exit block

Focal ablation of the superior vena cava potential eliminated the AT ( 2 cases ) and the atriocaval isolation created exit block and prevented the atrial tachyarrhythmias .

局灶消融和电隔离消融分别有效终止房性心动过速（2例）和完全电隔离上腔静脉-右心房传导（2例）。

According to the constitutive mechanism of trust between partners , we bring forward three constitutive paths of trust including the construction of trust based on " binding transaction ", trust based on high exit block and trust based on inter-linkage transaction .

根据合作伙伴间信任机制的构建机理，提出了基于捆绑式交易的信任关系建构、基于高退出壁垒的信任关系建构和基于互联交易的信任关系建构等三条信任构建途径。

At the first vibration signaling the onset of a quake , these devices return the elevators to the ground floor so passengers can exit , then block them until Otis can check their safety .

一旦预测到地震来临，电梯将自动下降到底层，方便乘客离开，然后电梯会自动停止运行，知道有技术人员确认安全之后。