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weight dropping

A seismic technique by which energy can be sent downward into the ground without the necessity of drilling shotholes. This technique involves lifting a weight, then permitting it to fall and strike the ground. The waves from the impact are then recorded. In areas where drilling is difficult, otherwise undesirable, or unduly expensive, this technique may be highly advantageous.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 分数
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