These sounds, it has been found, are produced in the air-filled nasal sacs of the dolphin.

人们发现，这些声音是由海豚充满空气的鼻囊发出的。

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How did the dolphin's clicks get transmitted from its air-filled nasal sacs into the ocean water?

海豚发出的滴答声是如何从充满空气的鼻囊传播到海水中的呢？

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During the cooking process, each piece of rice expands, and tiny air-filled caves form inside.

在烹调过程中，每当空洞扩大，空气就会充填其中。

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The International Union Against Cancer says about seven hundred million children breathe smoke-filled air.

VOA: special.2010.03.09

The sinuses consist of four symmetrical sets of air-filled bony cavities located in the forehead and cheeks and adjacent to the nose.

FORBES: Balloon Therapy

The main contribution of this study is to substantiate that claim with a combination of well-tested economic and neuroscientific approaches, rather than air-filled conjecture.

FORBES: The Neuroscience of Guilt Uncovers the Origin of Cooperation

Sinusitis is inflammation of the nasal cavity and the sinuses, which are air-filled spaces located primarily in the jaw above the upper teeth and in the forehead around the eyes.

CNN: What can I do for my chronic sinusitis?