In other embodiments, {TAIL ~ the coil restraints} of the present disclosure are attached in {HEAD ~ each trough} and extend transversely or across the trough 
In other embodiments , { TAIL ~ the coil restraints } of the present disclosure are attached in { HEAD ~ each trough } and extend transversely or across the trough
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH