Laboratory tests were done for researching influence of compaction and hulking of refuse rock on filling effect and several relationships were obtained including stress and strain,compaction degree and stress,hulking coefficient and stress in this paper.

By rearranging several flow stresses and bulging factors which are widely used in international rules for calculating burst pressure of pipelines and comparing the calculated results with experimental data,a result that flow stress is a main factor of affecting the burst pressure of pipelines is concluded.

The article introduces a way of the line coefficient of expansion of solid is measured fast and exact with Michaelson interferometer and thermocouple.

Influence of anharmonic vibration on the thermal expansion coefficient and condensational coefficient of two-dimensional fluid;

Measuring the expansion coefficient of metal using single slit diffraction;

Influence research of different expansion coefficient plaster cast materials on resin denture surface roughness;

Measuring coefficient of linear expansion of metal with optical fiber displacement sensor;

Measuring coefficient of linear expansion of metal and density of liquid with AC bridge and Joly spring balance;

The anharmonic effect of atomic vibration taken into account and from the potential energy which reacts each other among atoms, Boltzmann statistical principle used, the relation formula of temperature and the distance change between atoms and coefficient of linear expansion is derived.