According to {TAIL ~ a second aspect}, {HEAD ~ the clutch mechanism} can be used in any one of two arrangements by changing the assembling sequence of various constituent elements 
According to
According to { TAIL ~ a second aspect } , { HEAD ~ the clutch mechanism } can be used in any one of two arrangements by changing the assembling sequence of various constituent elements
REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH 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