Generally, the panel of substrate material 18 is mounted on {HEAD ~ a table} 20, which positions {TAIL ~ the substrate} underneath the opening 13 to form wells in a desired pattern in response to movement of the table, responsive to a control means  
Generally , the panel of substrate material 18 is mounted on { HEAD ~ a table } 20 , which positions { TAIL ~ the substrate } underneath the opening 13 to form wells in a desired pattern in response to movement of the table , responsive to a control means
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH 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