Experimental and analysis results show that,the dynamic stiffness shows linearity relation with inner gas pressure,and also with the vibration frequency.

The result shows that the structural extrusion and gas-filling increasing pressure are the main reasons resulting in the overpressures of Kala 2 Gas Field.

Probe into inflation pressure of air tourniquet for patients undergoing operation on lower limb;

To understand the rules of the influence from the impact,the inflation pressure and gas mass loss of inflatable space antenna reflector subjected to impact are analyzed.

Through the quantitative analysis of accumulator press-keeping clamping circuit,given the pressure of the switch pressure of relay and the reliability of press-keeping clamping force,analyed the impact of pressure time from the inflation pressure of accumulator and given the determined principles.

Charge pressure,which has a great impact on pressure fluctuation,is analyzed based on experiment in this paper.

Making a comparison between bladder type accumulator and piston accumulator,the paper presents the characteristics of both devices,puts forward and recommends to “piston accumalator with gas bomb”circuit design solution for large oil compensating and pressure maintaining system and makes an exposition of the operating process and methods for pressurizing by air inflation with piston accumulator.