pitwork

名词 n.
中文释义

英文释义

名词 n.
  1. Pumping machinery used in a mine. uncountable
    — […] and the remarks attached to each in Lean's report, show the necessity of adverting to the different conditions of the pitwork, in an attempt to estimate with accuracy the relative merit of different engines […]

词源

From pit + -work.
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