In addition, {TAIL ~ the measuring chamber} is provided with a pressure sensor for detecting a photoacoustic signal generated in {HEAD ~ the measuring chamber} 
In addition , { TAIL ~ the measuring chamber } is provided with a pressure sensor for detecting a photoacoustic signal generated in { HEAD ~ the measuring chamber }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD