They are not completely insulated, however; no one can be, here.
Your brother may apply for the job, but you must completely insulate yourself from the hiring process.
Even in here we'll need to be completely insulated.
For the second case, the tip is assumed to be adiabatic or completely insulated.
I won't say we're completely insulated from what is happening, but we are able to buffer it somewhat.
An isolated system is completely insulated from its surroundings.
If the tip is completely insulated, there will be no heat loss from the tip.
Competitive electricity markets will not work if consumers are completely insulated from wholesale market prices.
This does not mean, however, that the U.S. can completely insulate itself from the world's problems.
The space inside their suits was completely insulated.