Hydraulic characteristics of the UV disinfector was investigated by tracer experiment.

Laboratory trace experiment is conducted first to research the change of the flow pattern in caves as the fluid velocity increases during the displacement of water with water and the process of waterflooding.

To determine the transverse mixing and longitudinal dispersion coefficients at heavy sediment-carrying reach of the Yellow River,a field diffusion trace experiment was carried out at Mengjin reach of the Yellow River.

This paper introduced the construction of the provincial model laboratory of chemistry basic courses of Hunan University based on discussion about the content of the laboratory and three-type experiment,the change of teaching concept of practical education as well as the position,aim and ideas of laboratory construction.

This paper introduce the general idea and goal of model laboratory of mechanism & machine fundament and discuss the experi- mental teaching models including curriculum system, experimental content of courses, teaching means and measures.

The construction of "demonstration laboratory of electric and electronic engineering" can speed up the experimental teaching reform and management innovation, and improve the hardware environmental construction and teaching materials reform.

Based on teaching location of training high-quality applied technical personnel,this paper submits a \'233\' experiment teaching system which is a project on provincial demonstration laboratory of computer technology.