Renin also causes constriction of blood vessels which helps raise blood pressure.

肾素也能引起血管收缩，从而帮助升高血压。

They're struggling down through these constrictions.

他们正在努力通过这些狭窄处。

But when you hyperventilate, this constriction happens everywhere, which means less blood is delivered to your brain, which makes you light-headed.

但过度换气时，这种收缩无处不在，这意味着输送到大脑的血液减少，这让头晕。

It’s thought that this extreme constriction of blood vessels was an evolutionary advantage for humans.

人们认为，这种血管的极度收缩人类的进化优势。

Smooth muscle constriction results in the feeling of chest tightness.

平滑肌收缩导致胸闷感。

And there was a constriction in my area of perception.

我的感知围出现了一种收缩。

In preparation for that constriction, so they remain constant.

为了应对那种收缩，它们保持恒定。

We have a constriction of semiconductors, of used cars, and then eventually everything, right?

我们面临半导体、二手车等领域的供应紧张，最终一切都受到影响，对吧？

Sometimes you partner up, you know, distribution and capital will always be the constriction.

有时候选择合作，要知道，分销和资本总为限制因素。

Which snake does not kill by constriction?

哪种蛇不通过缠绕窒息的方式杀人？

It's a constriction, and it feels bad.

那一种收缩感，它感觉很不好。

Nicotine and other chemicals from the cigarette simultaneously cause constriction of blood vessels and damage their delicate endothelial lining, restricting blood flow.

香烟携带的尼古丁和其他化学分，使血脉缢缩，同时损伤它们脆弱的内皮细胞，限制血流。

If it's a no, you'll feel a little constriction.

如果否定的， 感到一丝紧缩。

Leto stilled his sudden constriction of fear, darted down the passage, crouched beside the crawling figure.

莱托平息了突然的恐惧收缩，飞奔下通道，蹲在爬行的身影旁边。

Without nitric oxide, you get constriction of blood vessels, and it leads to high blood pressure.

没有氮氧化物，血管就收缩，从而导致高血压。

The words tumbled out of my mouth, hardly intelligible because of the constriction of my throat.

话从我口中急促地吐出，因喉咙的紧缩而几乎难以听清。

So the mechanism, it is alpha-1 agonist causing vasopressor constriction, beta-1 agonist causing increased cardiac output.

其作用机制α-1受体激动引起血管收缩，β-1受体激动导致心输出量增加。

Which does not kill by constriction.

哪种不通过缠绕窒息致死。

It can cause constriction and dilation of blood vessels in ways that's complicated, but you'll get a headache.

这导致血管复杂地收缩和扩张，但结果感到头痛。

The era of constriction is over.

缩减规模的日子结束了。