Well, we'll measure the amount of energy after the collision, compare it to the amount of energy before, and if there's less energy after the collision than before, this will be evidence that the energy has drifted away.
衝突の後にエネルギーの量を計測して 衝突前のエネルギー量と比べます 衝突後の方がエネルギーが少なければ エネルギーが流れ出したことの証明になります