高压氮气爆破和煤岩体开裂实验系统。1:氮气钢瓶;2:空气压缩机;3:气体增压泵;4、6、7、8、18 19日和20:控制阀;5:电接触压力计;9:1 L高压容器;10和11:2 L高压容器;12 - 14:排气阀;15 - 17日:机械压力表; 21: the pneumatic high-pressure shut-off ball valve (pneumatic valve); 22: release tube; 23: releasing hole; 24: pressure chamber; 25: gaskets; 26: specimen; 27: millisecond pressure transmitter; 28: dynamic and static strain gauge; 29: computer acquisition system.