Matched context for tandem and dual-circuit

The page lists matched contexts for tandem and dual-circuit.

Share - tandem	Share - dual-circuit	Phrase
61.99%	15.15%	{tandem or dual-circuit} master
20.72%	13.16%	{tandem or dual-circuit} cylinder
3.78%	4.28%	{tandem or dual-circuit} booster
0.15%	51.72%	{tandem or dual-circuit} system
0.40%	3.47%	{tandem or dual-circuit} device
0.16%	1.85%	{tandem or dual-circuit} design