| 摘要 |
IN ACCORDANCE WITH THE PRESENT INVENTION, A UNITARY PIECE OF PLANAR CONDUCTIVE SHEET MATERIAL (1) COMPRISES A CONDUCTIVE POLYETHYLENE (PE) FILM STRIP (11) SANDWICHED BETWEEN TWO PLANAR SURFACES OF A U-folded FLEXIBLE FILM STRIP COVER (12), IS ATTACHED WITH A METALIC BUTTON MEANS AT ONE END, AND A WEIGHT IN FORM OF A SHORT BAR (2) AT THE OTHER END. THE CROSS-SECTION SHAPE OF THE SHORT BAR (2) CAN BE ROUND, SQUARE OR HEXAGONAL. THE INVENTION IS APPLICABLE FOR USE WITH A STATIONARY OR MOVING STRUCTURE (3) ON THE GROUND.(FIGURE 1)
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