例句與造句

1. Heat sources include gravitational energy released by the compression of the core, gravitational energy released by the rejection of light elements ( probably sulfur, oxygen, or silicon ) at the inner core boundary as it grows, latent heat of crystallization at the inner core boundary, and radioactivity of potassium, uranium and thorium.
2. It's difficult to find latent heat of crystallization in a sentence. 用latent heat of crystallization造句挺難的