The rotary shafts are aligned along {HEAD ~ independently inclined axes}, which define {TAIL ~ a point} of convergence beneath the hinge mechanism for the independent axes, so that the upper portion of the door is positioned away from the vehicle frame when the door is opened 
define
The rotary shafts are aligned along { HEAD ~ independently inclined axes } , which define { TAIL ~ a point } of convergence beneath the hinge mechanism for the independent axes , so that the upper portion of the door is positioned away from the vehicle frame when the door is opened
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH 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