Protective clothing, masks, goggles, negative pressure isolation ambulances, and medicines are facing shortages as the demand rises.

随着需求的增长，防护服、口罩、护目镜、负压隔离救护车及药品正面临短缺。

However, even the most compact negative pressure designs heavily restricted a patient's movement and obstructed access for caregivers.

但是，即使是最小巧的负压式呼吸机也会大大限制病人的移动，妨碍看护人员的工作。

This evaporation, called transpiration, creates negative pressure in the xylem, pulling watery xylem sap up the tree.

这种蒸发，叫作蒸腾作用，在木质中产生一种负压，把液体的木质树液往树上方拉。

Fathers who want to drop out of the workforce entirely and devote themselves to child care can face extremely negative social pressure.

那些想完全退出职场去全心照顾孩子的男性也会感受到来自社会舆论的负面压力。

Now, the patient is in isolation chamber with negative pressure air flow.

现在，病人在负压气流的隔离舱内。

But we're testing drugs and negative pressure suits to redistribute that fluid back to the lower body.

但我们正在测试药物和负压服，以将液体重新分配回下半身。

In the late 19th century, ventilation techniques largely focused on negative pressure, which closely approximates natural breathing and provides an even distribution of air in the lungs.

十九世纪晚期的呼吸机技术主要为负压式呼吸，这一过程模拟了自然呼吸，并保证了肺部均匀的空气分布。

They create little negative pressure  vacuums inside their traps, which, when triggered by prey, pop open and suck  the victim inside before snapping closed.

它们在陷阱内几乎不产生负压真空，当被猎物触发时， 陷阱会突然打开并将受害者吸进去， 然后突然关闭。

That's because your trachea is basically built like a vacuum hose — since the lungs create negative pressure with every breath, the trachea needs those rings to keep it open.

那是因为你的气管基本上就像一根真空软管——因为肺部每次呼吸都会产生负压，所以气管需要这些环来保持开放。

There are two main ways ventilators can work— pumping air into the patient's lungs through positive pressure ventilation, or allowing air to be passively drawn in through negative pressure ventilation.

呼吸机有两种主要的工作方式——通过正压式呼吸将空气冲入病人肺部，或通过负压式呼吸让空气被动吸入。

That's because the diaphragm muscle lowers during inspiration, and that creates negative pressure in the chest to bring in air, and that negative pressure also brings a bit more venous blood back to the right atrium and right ventricle.

这是因为吸气时膈肌下移，胸腔内的负压将空气吸入；这个负压同时将一些静脉血倒吸回右心房和右心室。

One of the simplest and most popular ideas is that there's an everywhere-permeating vacuum energy with negative pressure which we've never detected in any way other than by measuring the expansion of the universe...so we call it dark energy.

最简单且最受欢迎的想法之一是到处都是负压渗透的真空能量，除了通过测量宇宙的膨胀，我们从未以任何方式探测到过。所以我们称之为暗能量。