| 1. | Reservoir pressure is approximately 2,150 p.s.i. .
油层压力大致为2,150磅/英。 |
| 2. | Approximately one-half of this edition is new .
这一版本大约有一半内容是新写的。 |
| 3. | The acoustic window is approximately 1 in square .
声波干扰带约为1英。 |
| 4. | The mixture is allowed to hydrate for approximately 3 minutes .
混合物进行水合反应约3分钟。 |
| 5. | the limit of cold is reached at approximately minus -273℃.
冷限接近273。 |
| 6. | Approximately 75% of the earth's surface is covered with water .
地球表面大约有75为水所覆盖。 |
| 7. | That is, all nuclei have approximately the same density .
就是说，所有原子核都几乎有相同的密度。 |
| 8. | The asthenosphere corresponds approximately to the low-velocity zone .
软流圈，大体上相当于低速带。 |
| 9. | In approximately 1925, work began on the problem of suspension .
大约在1925年才开始了关于悬移质的研究。 |
| 10. | The line of sight must be approximately perpendicular to the horizontal axis .
视线必须近似地垂直于水平轴。 |
