The correct answer is, "When covered by
LIQUID sufficient to reduce the coefficient...
The Big Bang Theory Season 2, Episode 5
How about a LIQUID cooler?
A little aquarium pump here.
The Big Bang Theory Season 1, Episode 2
Well, if we had a freezer, the condensed
LIQUID would cool more quickly
Breaking Bad Season 5, Episode 14
The world's most boring LIQUID
and the world's most boring vegetable,
The Big Bang Theory Season 10, Episode 13
It's like a waterfall
of LIQUID gold.
The Big Bang Theory Season 5, Episode 1