But it's also semi-permeable, allowing air and moisture to pass through it.

但它也是半渗透性的，可让空气和水分通过。

I need to know something about snow depth, about snow penetration or how hard the snow is.

我还要了解积雪的深度、渗透性及硬度。

It's semipermeable, meaning that it lets some thing pass in and out but blocks others.

它是半渗透性的，意味着它可让某些东西进出，但会阻止某些东西进入。

The IgE-primed mast cells release their histamine, which causes nearby capillaries to dilate - flooding the facial tissues with fluid.

敏肥大细胞释放的组胺通过增加周围毛细血管的渗透性，最终导面部组织的充血水肿。

Is that fossilized air or is amber permeable enough that the air has been replaced?

是化石空气还是琥珀色的渗透性足取代空气？

Another kind, osmotic laxatives, work by making the concentration of certain salts or sugars higher in your intestines than outside them.

另一种渗透性泻药通过使肠内的盐或的浓度，高于肠外的方式来奏效。

They’re sweetened using sugar alcohols like maltitol, which is a potent osmotic laxative.

它们使用醇等醇增甜，醇是一种强效渗透性泻药。

However increased permeability doesn't just let white blood cells in, it also let's fluids out.

然而，增加的渗透性不仅会让白细胞进入，还会让液体流出。

They’re really permeable rock masses that easily store groundwater and act as a water supply.

它们是真正具有渗透性的岩体，可很容易地储存地下水并充当供水。

And similarly, a congested nose is caused by the capillaries growing larger due to the increased permeability.

同样，鼻塞是由于渗透性增加导毛细血管变大引起的。

Because hydrogels are permeable, you could deliver water-soluble drugs through the gel to the surface of the skin.

由于水凝胶具有渗透性，您可通过凝胶将水溶性药物输送到皮肤表面。

Dr. Patel says a gentler approach, and the one you probably want to start with, is called an osmotic laxative.

帕特尔博士说，一种更温和的方法，你可能想从这种方法开始，被称为渗透性泻药。

In this case, though, it's a slower process since there's also an osmotic diuresis or increased urination from the hyperglycemia, or high blood sugar.

尽管在这种情况下，过程较为缓慢，因为也存在渗透性利尿，或因高血而引起的排尿增多。

This doesn't necessarily mean gluten itself was causing illness but the researchers propose that some part of wheat prompts the intestinal lining to become more permeable.

这并不一定意味着麸质本身会导疾病，但研究人员提出，小的某些部分促使肠道内壁变得更具渗透性。

I mean it's over a very long period of time but it has enough permeability for those molecules of air to squeeze out one by one.

我的意思是，虽然时间很长，但它有足够的渗透性，可让空气分子一一挤出来。

Immune cells release various chemokines which creates an inflammatory reaction that makes epithelial cells secrete more mucus and makes the blood vessels in the walls of the airways more leaky.

免疫细胞释放多种趋化因子，产生炎症反应，使上皮细胞分泌更多黏液，并且使气管壁上的血管渗透性增加。

Similar " ex vivo" tests of the strength and permeability of the bond will also be needed for human tissue, followed by clinical tests on actual pigs and, eventually, humans.

人体组织也需要进行类似的结合强度和渗透性的“体外”测试，然后在猪身上进行临床测试，最终在人类身上进行测试。

When histamines are released, they make your capillaries—the smallest blood vessels in your body—more permeable, which allows white blood cells to enter the capillaries and fight the allergens.

当组胺被释放时，它们会使您的毛细血管（您体内最小的血管）更具渗透性，从而使白细胞进入毛细血管并对抗过敏原。

" The beads provide a very nice surface area and they're also porous so that the chemical reactions can take place on their surface and in the interior of these beads" .

" 这些微珠的表面积非常好，渗透性又好，因此其表面和内部都能发生化学反应。"

Although they are similar to blood capillaries, lymphatic capillaries are more permeable, and therefore they're more prone to allow the passage of proteins or even larger particles such as bacteria and viruses.

尽管它们与血毛细血管相似，但淋巴毛细血管的渗透性更强，因此它们更容易使蛋白质甚至细菌和病毒等更大的颗粒通过。