In {TAIL ~ a casing}, two fixed scroll members are provided on the axis of the casing, and {HEAD ~ an electric motor} is provided between the fixed scroll members 
In
In { TAIL ~ a casing } , two fixed scroll members are provided on the axis of the casing , and { HEAD ~ an electric motor } is provided between the fixed scroll members
REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH