a plurality of anchor plates arranged in a longitudinal direction, each of {HEAD ~ said anchor plates} being secured to {TAIL ~ the bottom} of a tank; and 
secured to
a plurality of anchor plates arranged in a longitudinal direction , each of { HEAD ~ said anchor plates } being secured to { TAIL ~ the bottom } of a tank ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH