The originalpressure-keeping hydraulic system was analyzed and its faults were pointed out. The improvement design of pressure-keeping hydraulic system was presented.
通过对原有液压机保压系统的分析，指出它的不合理之处，并对此系统进行改进设计。
2
It is easy to obtain parameters of permeability and originalpressure of deep brine aquifer by using the pressure recovery curve of a production well after it is shut up.
利用卤水生产井关井后的压力恢复曲线，可以很容易求得深层含卤层的渗流参数和原始地层压力。
3
Accompanying their children in school might give more pressure to their children unconsciously, which is opposite to parents' original intention.