{TAIL ~ A sample changer} for a balance with a weighing pan has {HEAD ~ at least two sample carriers} that are spaced apart from each other 
{ TAIL ~ A sample changer } for a balance with a weighing pan has { HEAD ~ at least two sample carriers } that are spaced apart from each other
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH