Matched context for spring and counterbalance

The page lists matched contexts for spring and counterbalance.

Share - spring	Share - counterbalance	Phrase
1.04%	29.43%	{spring or counterbalance} weight [perform operation]
2.17%	13.09%	force [does] {spring or counterbalance}
0.64%	6.68%	spring [does] {spring or counterbalance}