Results: The rate of equipping autoclave in private medical institutions in Beijing was 82.3% and was higher in urban districts than in the suburban counties.

The pressure of human activities to the physical geographical system in central urban area must be reduced during urbanization or re-urbanization.

An urban district of southeast England northeast of London. It was designated as a new town in 1946 to alleviate overpopulation in London. Population, 79,400.