Highly concentrated solutions can dissolve some metals, and it can cause severe burns if it gets on your skin.

高浓度的溶液会溶解一些金属，如果接触到皮肤的话，会导致严重烧伤。

First my blood is treated to make a concentrated solution of platelets in plasma. Next, this is injected directly into my face.

首先通过对我血液的处理获得富含血小板的血浆。然后这些血浆被直接注入我的面部。

Using these membranes, which are commonly referred to as nanofiltration membranes, now this five percent concentrated salty solution can be converted into a purified salt solution.

使用这些通常称为纳滤膜的膜，现在可以将这种浓度为 5% 的盐溶液转化为纯净的盐溶液。

Again, it is the movement from a dilute solution, so high concentration of water molecules down the concentration gradient to a more concentrated solution, so low concentration of water molecules.

同样，它是从稀溶液（水分子浓度高）沿着浓度梯度向下移动到更浓的溶液（水分子浓度低）。