Matched context for reciprocation and rod

The page lists matched contexts for reciprocation and rod.

Share - reciprocation	Share - rod	Phrase
8.22%	3.67%	piston {reciprocation or rod}
0.80%	0.13%	{reciprocation or rod} axis
1.88%	0.14%	{reciprocation or rod} motion
1.04%	0.19%	cause {reciprocation or rod} [perform operation]
2.06%	0.40%	valve {reciprocation or rod}