And if you want to run a furnace and provide energy that's an extremely important thing to be able to calculate.

如果你点燃壁炉，提供能量,计算这个量,是非常重要的。

麻省理工公开课 - 热力学与动力学课程节选

This is titanium sponge that comes out of the bottom of this reactor, and it subsequently re-melted in a vacuum arc furnace.

海绵状的钛,从反应器的底部出来，随后在真空炉中重新熔炼。

麻省理工公开课 - 固态化学导论课程节选