hermetically sealed

What it signals is that he may be subject to the same hermetically sealed information bubbles that now make every court critic into a vicious hater and every principled objector into a witch hunter.

What the conservative legal movement has built in many ways is a hermetically sealed circle.

Czaja is hopeful funding will be approved for the anticipated Mars Sample Return mission to retrieve the hermetically sealed titanium tubes scientists have spent three years filling with interesting rock cores.

“Boarding school is almost like a hermetically sealed environment, with very distinct rules and hierarchies,” he said.

“There's been a long sort of romantic history with boarding schools — and the production value is always good at boarding schools. So I think it's a combination of the hermetically sealed sort of environment and the rules, which also give rise to drama.”