Haile表示：“诀窍在于铈氧化物，它非常稳定，就像石头一样。”

"The trick here is the cerium oxide - it's very refractory, it's a rock," said Haile.

youdao

维生素a是一种可以分解对皮肤有害的不稳定的氧分子的抗氧化物。

Choose a moisturizing eye cream that contains vitamins a, k, and C. vitamin a is an antioxidant that breaks down unstable oxygen molecules that would otherwise harm your skin.

youdao

这就是为什么铝这么贵，因为氧化物稳定。

That is why aluminum is so expensive because the oxide is so stable.

youdao

That is why aluminum is so expensive because the oxide is so stable.

这就是为什么铝这么贵,因为氧化物稳定。

麻省理工公开课 - 固态化学导论课程节选