1.Finally, author has analysed a water gate of doubly curved flat shell by the method, compared the calculating results with the test results and the finite element results, it has been testified that the calculating accuracy of the double-direction strip method is satisfactory.
2.Pulsing vacuum high-pressure steam sterilization is able to fail due to some malfuncltions such as incompletely sealed diaphragm and strip, improperly closed gate and ball valves, unstable steam pressure and hydraulic pressure.