| 1. | This is unlike volcanic activity above the sea .
这同高出洋面的火山活动是不同的。 |
| 2. | Active faults and lineaments, and recent volcanic activity were re-examined .
对活断层，线状区和近代火山活动都重新作了研究。 |
| 3. | Earthquakes commonly accompany volcanic activity on movement of magma deep in the earth .
地震通常都伴随着火山活动或地球深处的岩浆运动。 |
| 4. | At the galapagos rift, volcanic activity beneath two geologic plates renews the earth's crust .
在加拉帕戈斯裂谷，两地质板块下面的火山活动使地壳更新。 |
| 5. | The only apparent building process that the early earth scientists could detect was volcanic activity .
早期地质学家所能发现的唯一明显的构造作用就是火山活动。 |
| 6. | Craters resembling those on the moon are produced on the earth both by volcanic activity and by meteoric impact .
由于火山爆发和陨星的撞击，类似于月球上的环形山地在地球上产生了。 |
| 7. | Volcanic activity has been responsible for large chunks of surface morphology in the western states, alaska, and hawaii .
火山活动是形成美国西部各州，阿拉斯加州和夏威夷州大片地形的主要原因。 |
| 8. | In this region of convergence we find the deepest earthquakes, great topographic relief, and intensive volcanic activity .
在这种聚合地区，我们发现了最深的地震，巨大的地形起伏和强烈的火山活动。 |
| 9. | The phenomena associated with volcanic activity
火山现象与火山活动有关的现象 |
| 10. | （ v ） natural catastrophes such as earthquake , hurricane , typhoon or volcanic activity
自然灾害，如地震、飓风、台风、或火山活动。 |
