A powder coating designed to undergo an irreversible chemical change during heating and will not revert to the liquidstage when reheated.
受热后发生不可逆化学反应,当再次受热不会成为液态的粉末涂料。
2
If these rays from the dying star were to wash over a once-frozen moon or exoplanet, the planetary body's icy layer would melt into liquid: setting the stage for life to form in a flowing ocean.