| 1. | The rock formations break with cracks into new positions .
岩层产生裂缝而破裂移位。 |
| 2. | Drag bits are used most commonly in soft formations .
在松软岩层中最常用的是钢砂钻头。 |
| 3. | The shale beds in between generally deform plastically .
夹在其中的页岩层通常是塑性变形。 |
| 4. | Not a fragment of bone had been discovered in these beds .
在这些岩层中，没有发现过这些动物遗骨的一块碎片。 |
| 5. | Exaggerated sections distort the shapes of folds as well as bed thickness .
比例放大的剖面歪曲褶皱的形态和岩层厚度。 |
| 6. | It is as if certain beds in the sub-surface contained banks of tiny capacitors .
好象地下某些岩层包含了成排的小电容。 |
| 7. | The neutron log is primarily responsive to the amount of hydrogen in the formation .
中子测井对岩层的氢含量有显著反映。 |
| 8. | They said that there was likely to be oil in the crests of folds of rock layers .
他们认为在岩层褶皱的顶部可能会有石油。 |
| 9. | In some places the rock floor beneath the ice is 8, 000 feet below sea level .
冰层覆盖下的岩层在有些地方为海面下八千英尺深。 |
| 10. | At places in the thickest layer they are present as ellipsoidal globules, 1-10mm in length .
在最厚岩层中，有的地方它们呈椭圆形球体，长110毫米。 |
