crustal heat flow

例句：

1. 1. The study of crustal heat flow is crucial for understanding the Earth's internal structure.
   研究地壳热流对于理解地球内部结构至关重要。
2. 2.Crustal heat flow data has been used to infer the age and composition of rocks beneath the ocean floor.
   地壳热流数据被用来推断海洋底部岩石的年龄和成分。
3. 3. The crustal heat flow model predicts that the Earth's mantle will reach a temperature of 700°C within the next 50 million years.
   地壳热流模型预测，在未来5000万年内，地球的地幔温度将达到700°C。