It's not only transparent to light but it's permeable to oxygen.

不仅透光，而且透氧。

And the dentin acts as the selectively permeable barrier.

而牙本质则作选择性渗透的屏障。

Toads have permeable skins and would quickly die from desiccation out in the daytime heat.

蟾蜍长着透水的皮肤，若是在白天的高温下，它们很快就会因脱水而死。

Osmosis is the movement of something like water across a selectively permeable barrier.

渗透是指像水这样的东西跨越选择性渗透的屏障的运动。

I had only a few bags. Most of my Arizona clothes were too permeable for Washington.

我只有几个袋子。我在那州穿的衣服，对于华盛顿州来说大都太不挡雨了。

Lymphatic capillaries are extremely permeable because their walls are made of endothelial cells that only loosely overlap, forming one-way minivalves.

毛细淋巴管是极度通透的，因它们的管壁仅由松散重叠的内皮细胞构成，形成单向的微小瓣膜。

Common non-cardiogenic causes include inflammation in the lungs or system-wide inflammation which causes the pulmonary capillaries to be more permeable.

常见的非心源性因素部或全身性炎症反应，会导致毛细血管通透性增高。

Through this permeable layer, they absorb water and oxygen.

通过这个渗透层，它们吸收水和氧气。

One unknown is how permeable to water the new material will prove.

一个未知数是新材料的透水性。

Our bodies are permeable to the waves, the vibrations.

我们的身体可以渗透波浪和振动。

First, engineers drill a well several kilometers into permeable rock like sandstone or basalt.

首先，工程师在砂岩或玄武岩等可渗透岩石中钻几公里的井。

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以取代空气？

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，可以很容易地储存地下水并充当供水。

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，您可以通过凝胶将水溶性药物输送到皮肤表面。

The new surface is designed to be permeable, and  will have a system to collect and reuse rainwater.

新表面设计可渗透的，并将有一个收集和再用雨水的系统。

Fish have thin, permeable skin that allows for essential compounds to diffuse into and out of their bodies while they're underwater.

鱼有薄而可渗透的皮肤，允许必需的化合物在水下时扩散进出它们的身体。

Amphibians such as this poison dart frog also have lungs like mammals but can get some oxygen through their moist, permeable skin as well.

像这只毒箭蛙这样的两栖动物也有像哺乳动物一样的，但它们也可以通过湿润、可渗透的皮肤获得一些氧气。

It seems that receptors without GluA2 are much more permeable to calcium flow, and that makes them vulnerable to the harmful chemical effects of loud noises.

似乎没有 GluA2 的受体对钙流更容易渗透，这使得它们更容易受到噪音的有害化学影响。

All of these can cause direct injury to the alveoli, and when this happens there is usually an inflammatory process that makes nearby capillaries more permeable.

以上因素皆可直接损伤泡，当这些因素作用时，常出现炎症过程，而炎症增加了周边毛细血管通透性。

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致疾病，但研究人员提出，小麦的某些部分促使肠道内壁变得更具渗透性。