Although {HEAD ~ the water transport unit} 900 is shown as {TAIL ~ a pair} of generally rectangular film like channels 910 and 920 with membrane 930 and diffusion media 940, it will be appreciated that the channels, membrane and diffusion media may be any of a variety of shapes 
is shown as
Although { HEAD ~ the water transport unit } 900 is shown as { TAIL ~ a pair } of generally rectangular film like channels 910 and 920 with membrane 930 and diffusion media 940 , it will be appreciated that the channels , membrane and diffusion media may be any of a variety of shapes
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL 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 OTH OTH OTH OTH OTH