id	keyword
ajst-30217	stress
ajst-30217	coal
ajst-30217	permeability
ajst-30217	pressure
ajst-30217	gas
ajst-30217	rock
ajst-30217	increase
ajst-30217	model
ajst-30217	fluid
ajst-30217	coal rock
ajst-30217	principal
ajst-30217	gas pressure
ajst-30217	flow
ajst-30217	temperature