They're struggling down through these constrictions.

他们正在努力通过这些狭窄处。

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。

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

莱托平然的恐惧收缩，飞奔下通道，蹲在爬行的身影旁边。

Smooth muscle constriction results in the feeling of chest tightness.

平滑肌收缩导致胸闷感。

The era of constriction is over.

缩减规模的日子结束。

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是人类的进化优势。

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

但是当你过度换气时，这种收缩无处不在，这意味着输送到脑的血液减少，这会让你头晕。

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成分，会使血脉缢缩，同时损伤它们脆弱的内皮细胞，限制血流。

There was a mind meld that we are not limited by constriction -- a podcast, music, books, book publishing.

有一种想法认为我们不受限制——播客、音乐、书籍、书籍出版。

They may just be vague feelings of unease, heaviness, or constriction, halfway between an emotion and a physical sensation.

它们可能只是一种模糊的不安、沉重或压迫感，绪和身体感觉之间。

" We've come a long way since those days, Ashley, " she said, trying to steady her voice, trying to fight the constriction in her throat.

" 从那些日子以来，我们已走很长一段路程呢，艾希礼，" 她说，设法使自己的声音坚定些，努力控制她那紧缩的嗓子不颤抖。"

" What is it, Tharthar? " " There is trouble, Reverend Mother." Jessica felt a constriction at her heart, an abrupt fear for Paul.

“怎么，塔塔尔？” “有麻烦，圣母。”杰西卡感到心头一紧，然对保罗产生恐惧。

Horner syndrome involves miosis or constriction of the pupils, ptosis or the drooping of the eyelid, and anhidrosis which is an inability to sweat in the face.

Horner综合征包括瞳孔缩小、上睑下垂以及面部无汗。

He said: " You didn't know that my wife, my Wanna… ." He shrugged, unable to speak past a sudden constriction in his throat.

他说：“你不知道我的妻子，我的Wanna… … ”他耸耸肩，喉咙然收缩，说不出话来。

One more thing: Aldosterone secretion, combined with blood vessel constriction due to impairment of nitric oxide synthesis — another consequence of this renin-angiotensin-aldosterone system, increases blood pressure.

还有，醛固酮分泌，加上因一氧化氮合成障碍引起的血管收缩，将导致 RAA 系统活跃带来的另一个后果——高血压。

His chest heaved once, as if his large heart, weary of despotic constriction, had expanded, despite the will, and made a vigorous bound for the attainment of liberty.

他的胸膛起伏一下，仿佛他那颗宽阔的心脏厌倦专制的压迫，不顾意志地膨胀起来，为获得自由而奋力一跃。

This third important cleaning device - like breathing, under partial voluntary control - is a rapid muscle contraction and bronchial-tube constriction that generates a wind force far stronger than a tornado.

第三个重要的清洁装置 – 如呼吸，在半自主控制下 – 是一种快速的肌肉收缩和支气管收缩，产生的风力远强龙卷风。