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词组 cradle-rocker
释义 cradle-rocker
noun
in placer mining, a trough on a rocker shaken to separate gold flecks from sand and earth CANADA
  • A cradle-rocker is a trough on a wooden or metal rocker, to wash and shake [potentially gold-bearing] muddy gravel in water. The prospector who performs such a task may also be called a cradle-rocker. — Bill Casselman, Canadian Words, p. 166, 1995
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更新时间:2024/9/21 20:42:07