Matched context for purging and degassing

The page lists matched contexts for purging and degassing.

Share - purging	Share - degassing	Phrase
9.19%	33.16%	{purging or degassing} passage
1.30%	28.54%	{purging or degassing} valve
0.69%	20.61%	{purging or degassing} conduit
2.36%	3.71%	fuel {purging or degassing}