Study on ventilation technology for the construction of Huangmaoshan tunnel;

The ventilation technology research for large space with a moving-heat source on sea;

The analysis and the discussion are put forward for the application of the ventilation technique which is used widely.

Taking the ventilation in the construction of the inclined shaft in Wuqiaoling extra-long tunnel as an example, this paper expounds the tunnel construction ventilation technique from aspects of the construction environment, the calculation of the input air, the type selection of the fan, and the control of the wind direction and the wind pressure, etc.

The indoor air quality has drawn more and more attention．A good air environment is an important performance require- ment of healthy residence．This article introduces the applications of several types of ventilation techniques to residential buildings in Hangzhou are introduced,as well as some technical problems which should be taken into account during application

This paper analyzes the gas sources of the stope in Suhaitu Mine, introduces the application of pressure-equalizing ventilation in 1256 working face, and illustrates some matters needing attention in using pressure-equalizing ventilation.

The paper introduces the current status of high-temperature deep shaft ventilation and refrigeration technology.