不依靠火源和热粒子,而仅仅由于冲击波(在爆破等工作中可能产生)的压缩作用,就有可能引起甲烷与空气的混合气体产生爆炸。关于这一点已在以前发表过报告。就是说,从实测所得的压力值与使用冲击波理论利用速度求出的计算值非常吻合这一点,可以认为使用此压力值通过理论式计 Do not rely on the source of heat and hot particles, but only because of the shock wave (may be generated in the blasting and other work) compression, it is possible to cause methane and air mixture gas explosion. There have been previous reports on this point. That is, it is considered that the pressure value obtained from the actual measurement is in good agreement with the calculated value obtained by using the shock wave theoretical use speed, and it is considered that the theoretical value