It had thin seams, it was wet, gassy and faulted, it had a bad roof, and no money had been spent on it.
For instance, a gassy pit would have a higher catastrophe risk than a non-gassy pit.
I have been to the most inclined seam, the most gassy seam, and so on.
Methods have been devised for ensuring the safety of electrical machinery and switch-gear for use in gassy mines.
There could be a wet or gassy seam.
It depended upon a sort of gassy invective that has appeared in just one or two papers, but not all.
You have to take it for granted that they are gassy unless you are quite certain that they are not.
It has been suggested that to some extent they may be due to the stooping posture adopted by miners, and the gassy condition of the pits.
