air existing, present of air, wind - air shifting (sometimes with sizeable pressure) from an area of significant force to a place of lower strain; "trees bent under the intense winds"; "when there's no wind, row"; "the radioactivity was becoming swept upwards with the air existing and out into https://thermal-cycling-chambers45677.blogripley.com/36475041/what-does-thermal-shock-testing-for-electronics-mean