In a hot plate for performing heat processing while an inert gas is supplied, a mounting table is provided with a groove and a lower end portion of a lid body can be inserted into the groove. The cladding contains openings for coupling radiative energy outward. The screw thread has an electrically conducting portion and an electrically insulating portion. Optionally, the system may open the vehicle compartment in response to a detection of an occupant and the sensed conditions. The scoring data are used to quantitatively score the number of hits or misses by the strafing projectiles on the strafe target. The switch makes a telephone call to the transfer telephone number to cause a telephone associated with the transfer telephone number to ring.