lode /ˈlod/
  礦脈,水路,水道
  Lode n.
  1. A water course or way; a reach of water.
     Down that long, dark lode . . .  he and his brother skated home in triumph.   --C. Kingsley.
  3. Especially: Mining Any regular vein or course of valuable mineral, whether metallic or not.
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  lode
       n : a deposit of valuable ore occurring within definite
           boundaries separating it from surrounding rocks [syn: load]