By eliminating the human driver, AVs can greatly reduce the number of crashes.

通过淘汰人工驾驶，自动驾驶汽车可以大大降低交通事故的发生率。

So, if your sensor- tive to speed and you find jet plain scary, stepping aboard a drone would be downright AV-ironic.

所以，如果你很敏感，而且你觉得喷气机很恐怖，那么踩上人机将会是种彻头彻尾的讽刺。

An atrioventricular or AV block is used to describe when the signal is delayed or blocked when it's trying to move from the atria to the ventricles.

房室传导阻滞是指当电信号由心房传导至心室时发生延误或阻滞。

" I am concerned that AV companies will rush to market without proving the safety is better than human-driven vehicles, " he said.

“我担心自动驾驶汽车公司会在没有证明其安全性优于人类驾驶汽车的情况下匆忙将其推向市场。”

So from the AV node, the signal travels straight down to the inferior end of the heart and gets distributed to both sides.

所以从房室结，信号直接传播到心脏的下端，并被分布到两侧。

So, a human driver will reduce speed far more quickly than an AV in such an edge case.

因此，在这种边缘案例中，人类司机减速的速度会比自动驾驶汽车快得多。

Yeah, he runs the AV Club.

对 他组织的乐部。

We just tell our parents we have AV Club after school.

我们只要告诉爸妈放学后有乐部活动。

The impulses leap across synapse-like connections between the cells called gap junctions, and continue down the conduction system until they reach the atrioventricular node, or AV node, located just above the tricuspid valve.

这些脉冲跨越细胞之间称为间隙连接的突触状连接，并沿着传导系统继续前进，直到它们到达位于三尖瓣正上方的房室结或房室结。

Supporters of autonomous vehicles, or AVs, say that computers and robotic technology will reduce the number of traffic accidents.

自动驾驶汽车的支持者表示，计算机和自动驾驶技术将会减少交通事故的数量。

When that depolarization wave from an atrial ectopic focus gets to the AV node, there are a couple options.

当除极波从房性异位起搏点到达房室结，它有许多选择可做。

Hello, this is Mike Wheeler, president of Hawkins Middle AV Club.

你好，我是迈克·维勒霍金斯中学乐部主席。

Now, when the signal hits the AV node, it actually gets delayed for like, a tenth of a second — so the atria can finish contracting before the ventricles contract.

现在，当信号到达房室节点时，它实际上会延迟十分之秒——所以心房可以在心室收缩之前完成收缩。

But across thousands or even millions of AVs, that would add up to a large amount of time stopped on the road waiting for human guidance.

但对于数千辆甚至数百万辆自动驾驶汽车来说，这点时间加起来就意味着它们需要耗费大量时间在路上等待人类的指导。

In terms of treating the AV block, typically a medication can be used to increase the heart rate like atropine.

至于AV阻滞的治疗，通常，如阿托品等药物可用于提高心率。

This treatment essentially uses cautery to cut and destroy the pathway, essentially boarding off the secret back door, leaving behind only one connection between the atria and the ventricles, the AV node.

这种治疗手段主要是通过烧灼来切断和破坏旁路，最终封闭这些秘密的后门，只留下条心房通往心室的道路，即房室结。

AVs will not. So, a human driver will reduce speed far more quickly than an AV in such an edge case.

自动驾驶汽车不会。因此，在这种边缘案例中，人类司机减速的速度会比自动驾驶汽车快得多。

Mike Wagner is with Edge Case Research, which helps AV companies analyze risk.

迈克·瓦格纳就职于Edge Case Research，该公司帮助自动驾驶汽车公司分析风险。

Hello, this is Dustin, and this is the secretary and treasurer of Hawkins Middle AV Club.

我是达斯汀，我是霍金斯中学乐部的干事和司库。

It's then delayed just slightly as it goes through the atrioventricular or AV node, before it passes through the Bundle of His and to the Purkinje fibers of the left and right ventricles, causing them to contract as well.

之后，它在通过房室结时发生了短暂的延搁，而后通过房室束以及左右室的浦肯野纤维，使左右心室收缩。