RNA is a molecule similar to DNA, except that its molecules are usually much smaller.

RNA是一种类似于DNA的，但是其量比DNA小得多。

This is a very small molecule, a molecular weight of 19.

这是一个非常小的，量为19。

So some really low molecular weight like methane.

所以一些量非常低的物质，比如甲烷。

Their molecular weight is about 350.

们的量约为350。

It has a molecular weight of about 853. It's got a lot of atoms, but it's not astronomically large.

的量大约为853，含有许多原，但并非天文数字般庞大。

Oncotic pressure results from the the inability of solutes like large proteins - albumin for example - to move across through the capillary.

胶体渗透压是由不能穿过毛细血管的溶质产生，像是大量白质，比如白白。

This is a risk for people taking warfarin, especially in large doses, without an overlapping rapid-onset blood thinner such as heparin or low molecular weight heparin.

这在服用华法林的患者中存在风险，尤其是当大剂量使用且没有叠加使用如肝素或低量肝素等速效血液稀释剂时。

And the thing about molecules that work as drugs ... FABIO URBINA: Is they have a certain molecular weight range, they have certain properties.

至于用作药物的… … FABIO URBINA：们有一定的量范？们有一定的特性？

It strengthens the skin barrier and in combination with a multi-molecular weight hyaluronic acid, it really penetrates to hydrate skin at quite a deep level.

能够强化皮肤屏障， 并与多量透明质酸结合，真正深入渗透， 在相当深的层次上为肌肤补水。

But key effector molecules, the things T cells use to kill target cells, like granzyme B, GZMB, and perforin, were significantly enriched in these HMW aggregates.

然而，关键的效应——T细胞用于杀伤靶细胞的物质，如粒酶B（GZMB）和穿孔素，在这些高量聚集体中显着富集。

The chemical parameters that we used for instance it was the molecular weight of compound, or the fact that the compound possesses or not some functional groups.

博维：我们使用的化学参数例如化合物的量，或者化合物是否具有某些官能团。

And then we were trying everything possible in a very logical way, whether it was basically blood thinners, whether it was low molecular weight heparins to prevent clotting.

然后我们以非常合理的方式尝试了所有可能的方法，无论是基本的血液稀释剂， 还是低量肝素来预防凝血。

Finally, it needs iron to thrive and replicate, so it produces a siderophore, which is a term used for a group of small, high-affinity, iron chelating compounds that snatch iron from host cells.

最后，需要人体内的铁元素来繁殖，所以形成一种“铁载体”；铁载体是指微生物合成并泌的螯合铁的、用于摄取铁元素的低量化合物，他们可以与宿主细胞竞争铁元素。

Using a combination of electrophoresis (which sorts proteins according to their size and electrical properties) and mass spectrometry (which sorts fragments of those proteins according to their weight), she was able to do just that.

Molette 博士使用电泳（根据白质的大小和电荷差异，将白质离）和质谱（根据量将白碎片离）测定来进行实验。