砕石
  さいせき
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  broken stone
  rubble
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  載積
  さいせき
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  carrying
  loading
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  採石
  さいせき
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  quarrying
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