| 1. | The test tube is closed at one end with a hydraulic seal .
试管的一端为水封所封闭。 |
| 2. | Dehydration in hydraulic presses is the most general method now in use .
在水压机中驱水是目前通用的方法。 |
| 3. | The front end is equipped with hydraulic jacks used for grade adjustment .
前瑞安装有液压千斤顶用来调整坡度。 |
| 4. | The property itselfthe hydraulic conductivitydoes not change .
它本身的性质，即水力传导性并没有发生变化。 |
| 5. | The hydraulic system comprises a master cylinder and the slave cylinders .
液压系统包括一个主缸和一些辅助缸。 |
| 6. | The power which moves the parts of the machine comes from hydraulic motors .
机器各部份的运动动力来自液压马达。 |
| 7. | The micromotion drive unit is a highly refined screw-driven hydraulic jack .
微形传动装置是一个极精制的螺杆用液压作动筒。 |
| 8. | Both hydraulic presses and hammers are widely used to produce this class of forgings .
水压机和锻锤已广泛用于生产这类锻件。 |
| 9. | A spring holds the other ends in contact with the piston of a hydraulic cylinder .
另一端由一个弹簧托住，与液压缸的活塞相接。 |
| 10. | This type of barrier is a combination of the pumping trough and the hydraulic ridge .
这类屏障是把抽水槽和水力分水岭结合在一起。 |
