a fluid channel unit possessing one of structure forming a first channel and {TAIL ~ a second channel} in common and structure forming the first channel and {HEAD ~ the second channel} separately, the first channel being a transparent fluid channel operable to supply fluid to be injected to the deformation sections and the second channel being a transparent fluid channel operable to pass fluid discharged from the deformation sections 
a fluid channel unit possessing one of structure forming a first channel and { TAIL ~ a second channel } in common and structure forming the first channel and { HEAD ~ the second channel } separately , the first channel being a transparent fluid channel operable to supply fluid to be injected to the deformation sections and the second channel being a transparent fluid channel operable to pass fluid discharged from the deformation sections
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH