In view of students mistakes made in which they study "equilibrium condensation polymerization" in "Polymer Chemistry" course, in this paper the equilibrium condensation polymerization equation is deduced rigorously and a clear explanation of both the presupposition and the scope of application of the equation is given.

Discussion of potential function and equilibrium equation about problem of rock sample monaxial compress failure;

Establishment of equilibrium equation in force method;

Based on properties of the materials analyzed and the main reactions in high-temperature smelting process,a mathematical method was used to establish the oxidation-reduction equilibrium equation of lead button formation in fire assay.

In the elastic scope of water resources safety system,the balance equation,consistency equation and constitutive equation of water resources safety are deduced.

Based on the data of a model test,three fundamental equations for EPB shields are derived,from which two general balance equations are developed,to form a mathematical model of EPB shield tunneling.

A set of balance equations of probability flux is established.

The equilibrium equations of growing deformable body based on the continuum model were established.

This paper discusses the bearing forces of screw press and draws the conclusion of between moment of a couple and press and the condition of selfocking by the equilibrium equations, principle of virtual displacement and the analogy method.

This paper discusses the various forms of equilibrium equations and the related constraint conditions for conplanar forces and space forces.

of vibrations and bring about on vibrations of orthotropic multiply composite spherical shells of equations of equilibrium.