Matched context for backflow and backflow

The page lists matched contexts for backflow and backflow.

Share - backflow	Share - backflow	Phrase
22.00%	22.00%	prevent {backflow or backflow} [perform operation]
19.24%	19.24%	{backflow or backflow} zone
9.56%	9.56%	{backflow or backflow} bubble
8.90%	8.90%	{backflow or backflow} restrictor
6.36%	6.36%	fuel {backflow or backflow}
4.96%	4.96%	{backflow or backflow} fitting
4.28%	4.28%	gas {backflow or backflow}
3.20%	3.20%	fluid {backflow or backflow}
2.83%	2.83%	restrict {backflow or backflow} [perform operation]
2.60%	2.60%	block {backflow or backflow} [perform operation]
2.25%	2.25%	{backflow or backflow} form
2.10%	2.10%	{backflow or backflow} valve
1.91%	1.91%	{backflow or backflow} conduit
1.92%	1.92%	{backflow or backflow} port
1.48%	1.48%	current [chronology] {backflow or backflow}
1.08%	1.08%	air {backflow or backflow}
1.36%	1.36%	avoid {backflow or backflow} [perform operation]
1.33%	1.33%	water {backflow or backflow}
0.85%	0.85%	{backflow or backflow} means
0.93%	0.93%	allow {backflow or backflow} [perform operation]
0.75%	0.75%	cause {backflow or backflow} [perform operation]