1Research of the system for collecting and analyzing information from gas-geology for predicting gas outburst81-83
3A discussion on factors relating to coalbed methane content of coal seam in the area of north China88-90
4Application of rate of deviation to expound practicability in tracing ground water,taking Baotou area as an example91-95
16Study of the environmental effect from red mud storage field of Zhongzhou Aluminum Company and the control countermeasures136-139
19The design of sequence control subsystem of the medium and thick steel plate's computer control system147-150