In the course of surveying and calculating the ventilation resistance in mine, potential pressure energy needs to be worked out by using the value of the relative level at the surveying spots.

During the construction monitoring on a long span bridge over Xijiang River, formwork erected with relative elevation method under the condition of long cantilever construction are adopted which can remove temperature s effect on closed elevation to the full and effects gained in the practical engineering application are introduced in this paper.

A method of relative calibration for “Shanghai”soft X-ray film,using transmission grating on synchrotron radiation source,is introduced.

In order to improve the accuracy of observations and make further research,the in-situ relative calibration and absolute calibration of the 4-component borehole strainmeter at Guza station were made.

By applying the relative coordinate method, the algorithm transforms the parametric space from the Cartesian coordinate space to the relative coordinate space.

The software conveniently calculates every bending surface by the method of relative coordinate and block calculation.

But here the author puts forward a new calcutation formula using relative coordinate system and gives examples to compare the using of these two methods, thus shows us the convenience of the method of relative coordinate syste

A New Algorithm Suitable for Parallel Computation——the Method of Relative Standard;

Law, in essence, is a universal expression of human rationality, which can be logically deduced to the relative standard and absolute standard of law.