{HEAD ~ The water transport unit} includes a moisture donating fluid channel and a moisture accepting fluid channel, where the latter is fluidly connected with {TAIL ~ a portion} of the fuel cell that is in need of humidification 
{ HEAD ~ The water transport unit } includes a moisture donating fluid channel and a moisture accepting fluid channel , where the latter is fluidly connected with { TAIL ~ a portion } of the fuel cell that is in need of humidification
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH