With her aortic injuries, her chances of survival are extremely slim no matter what we do.

管我怎么做，她的大动脉伤使她的生还几率比较渺茫。

The rail system, an artery for the American economy here.

铁路系统是美国经济的大动脉。

Today, I'm announcing the United States is targeting the main artery of Russia's economy.

今天，我宣布美国正瞄准俄罗斯经济的大动脉。

When the elastic fibers around the aorta weaken, they can't provide the artery with enough support.

当大动脉周围的弹性纤维变弱时，它能为动脉提供足够的支撑。

The aortic I may rely upon, but I should value your opinion upon the mitral.

我的大动脉还好，可是对于我的僧帽瓣，我要听听您的宝贵的见。

These chemoreceptors are located in our brains and some large arteries that deliver blood to the brain.

这些化学感受器位于我的大脑和一些向大脑输送液的大动脉中。

The " great arteries" , are these two main arteries taking blood away from the heart —the aorta and pulmonary artery.

大动脉指的是这两液带离心脏的主要动脉：主动脉和肺动脉。

The researchers found that the large arteries in the body became stiffer and less elastic with age, causing increased blood pressure.

研究者发现人体内的大动脉管随着年龄增长而逐渐僵硬缺少弹性，从而导致压上升。

We only exist as the blood corpuscles that course through its arteries, and if it could work without us, it would let us die.

我存在着，只过像流过它的大动脉的一些球，要是它没有我也能工作的话，它会让我死掉。

If these two great arteries, the aorta and pulmonary artery, don't divide, you essentially have this massive artery coming from both ventricles.

如果主动脉和肺动脉这两大动脉分开的话，你会有这从心室发出的大动脉。

However, other veins are located deep within your body, and these deep veins tend to follow the course of the major arteries.

然而，其他静脉位于身体的深处，这些深静脉往往跟随大动脉的走向。

Most neural responses like this use baroreceptors, special nerve endings found in the carotid arteries, the aorta, and other larger arteries in the neck.

大多数像这样的神经反应使用压力感受器，在颈动脉、主动脉和颈部的其他大动脉中发现的特殊神经末梢。

But do I desire unreasonably much in wanting what is called life—music, poetry, passion, war, and all the beating and pulsing that are going on in the great arteries of the world?

但我需要所谓的生活——音乐、诗歌、热情、战争以及世界大动脉里的种种跳动和搏动，难道说这样太无理太过分了吗？

When this right ventricle contracts, it forces the pulmonary semilunar valve to open, allowing a rush of blood into the pulmonary trunk, which is the large artery that leaves the right ventricle.

右心室收缩时，它会迫使肺半月瓣打开，从而使液涌入肺动脉，后者是离开右心室的大动脉。

At the first large crosstown artery of travel he took an eastbound car that deposited him in a decaying avenue, whose ancient structures once sheltered the pride and glory of the town.

在第一横贯城市的大动脉上， 他乘坐了一辆向东行驶的汽车， 将他停在一破旧的大街上，这古老的建筑曾经庇护着这座城镇的骄傲和荣耀。

And two, the ventricles need to squeeze like their squeezing a tube of toothpaste -- from the bottom up -- to accelerate the blood through the big arteries at the top of the heart.

第二，心室需要挤压，像挤压一管牙膏一样——自下而上——来加速液通过心脏顶部的大动脉。