The time for applying the current to the electrical heating wires 2 to split the cathode ray tube 6 is not particularly limited, but may be {HEAD ~ several tens} of {TAIL ~ seconds} to several minutes 
of
The time for applying the current to the electrical heating wires 2 to split the cathode ray tube 6 is not particularly limited , but may be { HEAD ~ several tens } of { TAIL ~ seconds } to several minutes
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 HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH