It's so similar to interstitial fluid because it--essentially--is interstitial fluid.

它与组织液如此相像，因为从本质上来说，它就是组织液。

Once the interstitial fluid is in the lymphatic vessels, it's called lymph.

一旦间质液进入淋巴管中，它就叫做“淋巴”。

This pleural fluid is similar to interstitial fluid and is made slippery by proteins like albumin.

胸腔积液类似于组织液，其中蛋白质使其有润滑作用，比如白蛋白。

The oncotic pressure is higher in the pulmonary capillaries than in the interstitial fluid, so it opposes the hydrostatic pressure.

肺毛细血管的胶体渗透压比肺间质胶体渗透压高，因此它与流体静压拮抗。

But it's still higher than the hydrostatic pressure exerted by the interstitial fluid of the lungs - which is almost zero.

但它仍然高于肺组织间隙产生的流体静压（几乎为0）。

That's where the lymphatic vessels, or lymphatics, come into play: they collect excess interstitial fluid and return it to the blood.

这就是淋巴管发挥作用的地方了：它们收集过量的间质液并把它们运回血液。

Every day 20 liters of fluid water and protein - seep out of the capillaries and becomes part of the interstitial fluid between cells.

每天有20升的液体和蛋白质渗出毛细血管，成为部分细胞间的间质液。

When dendritic cells are young and immature, they're excellent at phagocytosis, constantly eating large amounts of protein found in the interstitial fluid.

当树突状细胞还幼小且不成熟时，它们极其擅长吞噬作用，经常吞食大量组织液中的蛋白质。

Hormones circulating in the blood diffuse into the interstitial fluids surrounding the cell.

血液中循环的激素扩散到细胞周围的间液中。

This 3 liters of fluid needs to find a way back into the blood so that the body's interstitial fluid volume and blood volume both stay constant over time.

这3升液体需要寻找回到血液的途径，以便于间质液量和血液量都总是维持恒定。

When something blocks the normal flow in the lymphatic system, the lymph gets backed up, which means the interstitial fluid can't drain properly, causing fluid to accumulate in the interstitial space.

当某些物质阻塞了淋巴系统的正常运作时，淋巴液就会回流，意味着组织液无法正常排出，导致液体积聚在组织间隙中。

Pulmonary edema makes gas exchange difficult because oxygen and carbon dioxide have to diffuse through a wide layer of interstitial fluid, to get from the alveoli to the pulmonary capillary and vice versa.

肺水肿导致肺换气障碍，因为氧气和二氧化碳须透过较厚的间隙液体层，从而在肺泡和肺毛细血管间交换。

To understand pulmonary edema, let's first talk about the three main factors that determine how fluid moves between the capillaries and interstitial fluid, which are the hydrostatic pressure, oncotic pressure and capillary permeability.

为了解肺水肿，我们首先讲讲决定液体如何在毛细血管和间隙之间移动的3个主要因素：1.流体静压，2.胶体渗透压，3.毛细血管通透性。