The flow cell allows fast and simple removal and replacement of substrates while insuring a tight seal around {HEAD ~ the substrate} to minimize {TAIL ~ the leakage} of reagents in the flow cell, and it locates the active surface of the substrate at the focal plane of the image former with a high degree of accuracy and repeatability 
to minimize
The flow cell allows fast and simple removal and replacement of substrates while insuring a tight seal around { HEAD ~ the substrate } to minimize { TAIL ~ the leakage } of reagents in the flow cell , and it locates the active surface of the substrate at the focal plane of the image former with a high degree of accuracy and repeatability
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH