青云翻译

Positive pressure: pressure fluctuation range (2250pa ~ 3750pa), the fluctuation cycle of 7s, pressurized to 10 times the specimen without damage;

Differential pressure: pressure fluctuation range (2250Pa~3750Pa), wave period is 7s, pressure is 10 times the number, test pieces without damage;

Pressure difference: The fluctuation of pressure scope is (2250Pa~3750Pa), the undulation cycle is 7s, the compression number of times is 10 times, the test sample does not have the damage;

It is differential pressure: The pressure fluctuations in the range (2250 ~ 3750 Pa Pa), volatility cycle for 7 s, charge of 10 test specimen, no damage;

Differential pressure: pressure fluctuation range (2250Pa~3750Pa), wave period is 7s, pressure is 10 times the number, test pieces without damage;