A key discovery was that if the inside of the mask is smooth - even if the outside is bumpy with pores, a nose and other features - it will stretch over most faces and move with facial muscles.

最关键的发现是，如果面具内部平滑，即使外面的气孔，鼻子和其它部位凹凸不平，它也会在面部伸展，随着肌肉的伸缩而移动。

youdao

When a dolphin pressed a certain key with her nose, researchers would throw the corresponding prop into the water.

每当海豚用前额按响一个键时，研究者们则会超水中抛下相对应的道具。

youdao

The idea is that every odor molecule that enters our nose has a specific shape that fits a specific receptor-like a key fits a lock-allowing us to detect, say, the acrid aroma of burnt coffee.

这个想法是，每一个进入我们的鼻子的气味分子都有一个特定的形状，相互吻合的特定受体——就像锁和钥匙一样——使我们能够感知，例如感知焦咖啡的刺鼻气味。

youdao

Today's facial-recognition systems use a camera to zoom in on an individual's eyes, mouth and nose, and extract a "feature vector, " a set of numbers that describes key aspects of the image, such as the precise distance between the eyes. (Remember, in the end, digital images are just numbers.) Those numbers can be fed back into a large database of faces in search of a match.

WSJ: Eric Schmidt and Jared Cohen: The Dark Side of the Digital Revolution