{HEAD ~ The first reaction unit} is set to {TAIL ~ a temperature} higher than that of the second reaction unit, and the first region has a higher reflectivity than that of the second region, with respect to a heat ray that is radiated from the reaction device main body 
is set to
{ HEAD ~ The first reaction unit } is set to { TAIL ~ a temperature } higher than that of the second reaction unit , and the first region has a higher reflectivity than that of the second region , with respect to a heat ray that is radiated from the reaction device main body
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH