Originally Mining (chiefly in gold-washing). Any of various contrivances or devices (such as grooves, bars, or slats) on the bottom of a sluice or…
| 单词 | θ212934 |
| 释义 | society > occupation and work > equipment > equipment for treating ores > [noun] > for washing ore > for gold > part of sluice (3) riffle1848 Originally Mining (chiefly in gold-washing). Any of various contrivances or devices (such as grooves, bars, or slats) on the bottom of a sluice or… ripple1853 Chiefly U.S., Australian, and New Zealand = riffle, n. 4. Now chiefly historical. sluice-box1857 One of the long troughs of which a gold-washing sluice is composed; a riffle-box. |
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