This article argues that the legal status of the near space depends on the demarcation of the air space and the outer space.

Determination of Cadmium in the Air in Workshop by Differnyial Potentiometric Stripping Method;

To solve the problem in driving of a drift with peripheral hole smooth blasting,the air-deck charge in peripheral hole smooth blasting and its improvement on the detonation mode have been applied,and better blasting effect has been obtained,The practical application has proved that the technique is simple in operation,low cost in blasting,very profitable and valuable in extended application.

A new blast technology, air-deck charge using peremeter hole smooth blasting, has been introduced in this paper.

Determination of Manganese and its Compounds in Air of Workshop;

To test detection of vinylacetate in air of workshop with gas chromatography.

Application of turbine-generator air gap monitoring technique;

Study on external insulation of air gap of ±800 kV DC system;

Influence of air gaps in single-layer bandpass FSS structures;

Influence of space weather on the navigation satellite;

Research on distributed high performance architecture for space weather modeling;

Exploration and research of space physics and space weather;