Fluid mechanics is the description of the flow of liquids and gasses.

流力是对液和气流动描述。

Fluid mechanics is notoriously difficult, mostly because motions of tiny things like molecules get really complicated really fast.

流力是出了名困难，主要是因为分子等微小运动很快就会变得非常复杂。

Using fluid mechanics you can work out how much lift is generated from an aeroplane's wing, or how aerodynamic a car is.

使用流力，您可以计算出飞翼产生了多少升力，或者汽车空气动力特性如何。

[Derek] For fluid mechanics, I always expect that you have to keep the Reynolds number the same as in the real world phenomena.

- [Derek] 对于流力，是希望你必须保持雷诺数与现实世界现象相同。

So the work that we do is combining fluid mechanics with problems that are relevant in health and epidemiology to understand better how pathogens are transmitted.

因此，们所做工作是将流力与健康和流行病相关问题结合起来，以更好地了解病原传播方式。

Today, I'm going to tell you a story about one of nature's most extraordinary engineers that pushes the limits of fluid mechanics and bioengineering and arguably solves their No.

今天，将向您讲述一个关于自然界最杰出工程师之一故事，他突破了流力和生工程极限，并可以说解决了他们第一大难题。

MUKUL SHARMA: " That's precisely what we were doing, was looking at fluid mechanics, chemistry, and so on… and applying all that knowledge to making hydraulic fracturing process better." " Hydraulic fracturing" is the industry term for fracking.

Mukul SARMA：“这正是们正在做事情，研究流力、化等… … 并应用所有这些知识来改进水力压裂过程。 ” “水力压裂” 是水力压裂行业术语。