The paper provides an introduction of the accurate calculation of transition curve and the derivation of the general formula.

The article concludes a set of general formula of calculating curve coordinates.

Via deriving and analysing the general formula for ensuring the outer convex of planar earn profile, researched and solved the task of designing the minimum size translating flat-bottomed follower planar earn mechanism in accordance with the outer convex of earn profile and the allowable pressure angle.

This paper deduced the universal formula of the alternating circuit of special cycle function by using the phase calculation,which made the calculation much easier.

This paper gives out the weighted resistor decoding networks of normal DAC and BCD code DAC, works out the universal formulas of connecting resistors, and simulates the circuit with EWB.

The universal formulas,it is necessary for Bayes 2-sample prediction,of the conditional Probability density function(pdf),conditional reliability,conditional mean of the j th(j= 1,2,,N) order statistic of the future sample with size N for general continuous distribution are presented.

Application of GIUH general expressions based on GIS Technique;

In the paper,universal calculation equation for gauging-point electric potential of oxidation-reduction titration reaction is discussed,testified and expressed exactly.