单词 | ton-fathom |
释义 | > as lemmaston-fathom ton-fathom n. the equivalent of the work done in raising a ton through the depth of a fathom, as in the shaft of a mine. ΘΠ the world > movement > motion in a certain direction > upward movement > raising > [noun] > taking or lifting up > a ton through the depth of a fathom ton-fathom1874 1874 J. H. Collins Princ. Metal Mining (1875) xiii. 77 About 1-50th of a penny per ton-fathom, or less. < as lemmas |
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