The channels should be 2 3 times the side length of {HEAD ~ the resistor} to provide {TAIL ~ an adequate gap} between them 
The channels should be 2 3 times the side length of { HEAD ~ the resistor } to provide { TAIL ~ an adequate gap } between them
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 TAIL OTH OTH