Subsequently, and while maintaining the supercritical state of the supercritical fluid, the conditions within {HEAD ~ the reaction chamber} are changed to {TAIL ~ the conditions} under which the precursor is relatively reactive 
Subsequently , and while maintaining the supercritical state of the supercritical fluid , the conditions within { HEAD ~ the reaction chamber } are changed to { TAIL ~ the conditions } under which the precursor is relatively reactive
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH