An error of the formula of phase frequency response in frequency response approach and its correction;

The formula for deep-mixing pile composite foundation on the code is bad with correlation of the geologic strata parameter(such as soil modulus on the end of pile foundation,pile foundation size,subsidiary stress etc).

This paper theoretically, derived Variable laws of rotational velocity wave and formula of internal combustion engine under sudden load and introduce calculated examples and measurement effect of the instan taneous speed of internal combustion engine.

Discussion of Calculation Formula of The Ends in Warp in the Fabric;

Researches on the Theoretical Calculation Formula of the Strength of the On-line Seal Clamps;

Application of calculation formula of measurement and acceptance at open pit mine;

Contrast analysis of calculating formula adaptive range in the position of curve water fetching hole;

On a equation in a finite field and the calculating formula for its number of solutions;

A study on the calculating formula for the deepness of base neckhole

The computational formulas of general higher order Fibonacci number and Lucas number;

This paper analyzes the original computational formula of the light well point dewatering, and puts forward some improving suggestions.

Finally,a computational formula is constructed for non-isomorphic layout graphs.

Study on the calculation model of reed evapotranspiration in arid zone

The potential failure surface is explicitly specified in the current specifications for the single erective RSRW,but the universal calculation model of the RSRWs with different step widths is lacking.