According to the standard for identification of major hazard installations(GB18218-2000) in China,and based on the definition and the classification of major hazards,an equivalent method is put forward in consideration of the inherent energy and educed energy of materials.

A method of calculating condensate equivalent gas volume is shown in this paper.

In order to analyse the calendar life of the aircraft from qualitatively to quantitatively,the technical key is the equivalence relation between the atmospheric environment exposed and tested, using the corrosion electric current I c as a scale of the corrosion environment of the metal structures.

Study of Aurin Tricarboxylic Acid in the Spectrophotometic Determination of Aluminum in Metallic Magnesium and Its Application;

Theoretical estimate of neutron fluxirradiation includes the dose equivalent of fast flux,thermal flux and fast flux at the skin and their total amount.

Then base on these measurement data,to calculate the dose equivalent of body with some specified.

The dose equivalent of neutron radiation is very low, the measured value is far below the national and ministry issued standards of permissible.