qì​liú

airflow

气流 (氣流) qì​liú
airflow noun
a stream or current of air, including drafts, slipstreams, or air used in speech

The windows in this office are very small, and there is no airflow inside.

turbulence noun
unstable or violent movement of air currents affecting an aircraft

The plane encountered strong turbulence and experienced severe jolting.

Frequency

Movie subtitles
2.83 per million appears in 1% of films
Written text
4.54 per million

Sources

Definitions
CC-CEDICT