| 1. | Often it is a very small fraction of the main output . 它在主要产品中通常只占极小的比重。 |
| 2. | the oil recovered has a gravity of 38° a.p.i. 重新找到的原油比重为38API。 |
| 3. | The next trail would require a slightly higher filling density acid . 在下一次试验时需要注入比重较高的酸。 |
| 4. | Aerodynamic balances are simpler and lighter than mass balances or power boost . 气动补偿比重量补偿或助力器简单而且轻便。 |
| 5. | Difficulties may well be overcome or put in their proper place and proportion . 困难很可能被克服,或被置于适当的位置和比重。 |
| 6. | The bicapillary pycnometer is a tool for accurate determination of density . 双毛细管比重瓶是一种用于精确测量液体密度的仪器。 |
| 7. | the staggered conformation of is more stable than the eclipsed conformation. 的率差式构象是比重叠式构象稳定些。 |
| 8. | Once the desired specific gravity is established, the same strength must be used henceforth . 所需的比重一经确定,以后就必须使用同一浓度的酸。 |
| 9. | In this range, the pressure drop increases in proportion to the specific gravity of the mixture . 在这个范围内压力差的增加与混合物的比重成比例。 |
| 10. | Oil's share of world energy consumption rose from 29 percent to 46 percent over the same period . 石油占世界能源消耗的比重在这个时期从29上升到46。 |