| 摘要 |
PURPOSE:To ensure a clear-cut screen of a TV, by attaching a TV antenna device to a freezing shaft through an attachment wiring and the stirring and freezing the mixed chemicals in a water tank. CONSTITUTION:An earth wire is put through a screw 2 of an antenna device into a catch bolt 9. The earth wire is set tight to a freezing chemicals are put into a freezing room, and a battery switch 3 is turned on. Thus a motor starts to stir the mixed chmicals and to freeze them. These frozen chemicals are conveyed to the earth wire to present a clear-cut screen of a TV. |
