| 1. | Strains in the earth's crust seem to pile up .
地壳的应力似乎一直在积聚着。 |
| 2. | Under heat and pressure, rocks of the earth's crust move slowly and gradually .
在热和压力的作用下，地壳的岩石缓慢而逐渐运动着。 |
| 3. | Transfer of heat by conduction governs the thermal conditions within almost the entire crust of the earth .
传导传热控制着几乎整个地壳的热状态。 |
| 4. | The consolidation of the crust can hardly have occured less than 20 or more than 40 million years ago .
地壳的凝固不会少于2000万年，或多于4000万年。 |
| 5. | Weight of the crust changes as elevations are eroded and materials are deposited elsewhere .
当高地受到侵蚀，物质沉积到别的地方时，地壳的重量就改变。 |
| 6. | Could this indicate the presence of an exit vent for sea water that had circulated through the earth's crust ?
莫非这表明存在一个环流地壳的海水出口么？ |
| 7. | The initiation and maintenance of faults will depend upon the contemporary system of tectonic stresses in the earth's crust .
断层的发生和保持取决于地壳的构造应力的同代体系。 |
| 8. | With technical guidance from professionals, they operate in shifts round the clock to keep tabs on the earth's pulsation .
在专业人员的技术指导下，他们日夜轮班工作，监视着地壳的脉动。 |
| 9. | Owing to the difficulty of sampling beneath the deep oceans, the composition of the oceanic crust is not known with complete certainty .
由于在深海底下取样困难，海洋地壳的组成就不完全确知。 |
| 10. | Under the crust are many layers of hard rock
在地壳的下面是许许多多坚硬的岩石层。 |
