| 单词 | trepan saw |
| 释义 | > as lemmastrepan saw trepan saw n. a saw of the form of a trepan, a crown-saw. ΘΚΠ society > occupation and work > equipment > cutting tool > saw > [noun] > crown-saw crown saw1749 trepan saw1839 hole saw1961 1839 A. Ure Dict. Arts 148 A is a pulley... It has the crown or trepan saw a fixed to it. < as lemmas |
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