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

但它也是半渗透性的，可以让空气和水分通过。

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

它是半渗透性的，意味着它可以让某些东西出，但会阻止某些东西。

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.

人组织也需要行类似的结合强度和渗透性的“”试，然后在猪身上行临床试，最终在人类身上行试。

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

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

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

然而，加的渗透性不仅会让白细胞，会让液流出。

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

它们使用糖醇如麦芽糖醇来甜，而麦芽糖醇是一种强力的渗透性泻药。

Or you consume what's called osmotic sodium in water.

或者，你可以摄所谓的渗透性钠于水中。

Gravity is, you know, we're being pulled towards the Andromeda Galaxy at some enormous rate of speed because of its massive counter-gravitational force to the force we exert on it.

你知道，引力是所谓的四种基本力中最弱的一种，但它却具有最广泛的渗透性和最长的作用范围。引力，比如说，我们正以极高的速度被仙女座星系吸引过去，这是因为它对我们施加的力的巨大反引力作用。因此，引力的作用范围极其广阔，但强度却异常微弱。

This, he said, presupposes an extreme permeability which would have to be demonstrated between upper-class culture and peasant culture.

他说，这预设了精英文化与农民文化之间必须证明存在着极端的渗透性。

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，可以很容易地储存地下水并充当供水。

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。

So I know that when they, if you find certain crystals, the crystals have these fluid inclusions and sometimes air inclusions but from what I understand I think that the amber has enough permeability.

所以我知道，当你发现某些晶时，晶有这些流内含物，有时有空气内含物，但据我所知，我认为琥珀有足够的渗透性。

Numerical Analysis The Shanghai Metro is composed of shallow shield tunnels, which are mostly located in soft soil strata with high compressibility, low strength and low permeability.

数值分析 上海地铁由浅盾构隧道组成，大多位于高压缩、低强度、低渗透性的软土地层中。

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

是化石空气是琥珀色的渗透性足以取代空气？

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，可以让空气分子一一挤出来。