Matched context for draw back and introduce

The page lists matched contexts for draw back and introduce.

Share - draw back	Share - introduce	Phrase
10.39%	4.13%	chamber [location] {draw back or introduce}
5.47%	6.52%	{draw back or introduce} air [perform operation]
10.00%	1.96%	{draw back or introduce} gas [perform operation]
8.76%	0.84%	cylinder [location] {draw back or introduce}
9.46%	0.76%	system [location] {draw back or introduce}
7.80%	0.50%	{draw back or introduce} vapor [perform operation]
3.66%	0.14%	{draw back or introduce} modal will