The connecting rod system, which consists of {HEAD ~ the two connecting rods}, and which bends and extends at its articulation point to the crank pin, generates the oscillating working medium column, and permits {TAIL ~ the aforementioned utilization} of the additional pressure 
The connecting rod system , which consists of { HEAD ~ the two connecting rods } , and which bends and extends at its articulation point to the crank pin , generates the oscillating working medium column , and permits { TAIL ~ the aforementioned utilization } of the additional pressure
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH