| 摘要 |
<p>A spot indicating metal detector apparatus (10) rides on a motorized platform (13) having a rotary framework (17) having a plurality of metal detectors (22) mounted thereon with a plurality of metal detector coils (24) positioned adjacent the ground below. The metal detector apparatus (10) has a plurality of spray heads (28) each associated with one metal detector detector coil (24) for spraying a fluid onto the earth at the position the metal detector (22) detects the presence of a metallic object.</p> |
