这仍然是绝热的，是隔热的，但现在它的体积是恒定的。

So this is still adiabatic. It's insulated, but now it's constant volume, OK.

youdao

这仍然是绝热的，是隔热的，但现在它的体积是恒定的。

So this is still adiabatic. It's insulated, but now it's constant volume, OK.

youdao